diff --git a/scripts/hv-unified.user.js b/scripts/hv-unified.user.js
index fa8683a..c6ad7da 100644
--- a/scripts/hv-unified.user.js
+++ b/scripts/hv-unified.user.js
@@ -29,16 +29,16 @@ const CFG = {
     autoCure: true,
     autoSpirit: false,
 
-    // — Thresholds (benchmark-optimized)
+    // — Thresholds (simulation-backed)
     cureHP: 0.45,              // Cast Cure below this HP
     cureItemHP: 0.50,          // Use health items at this HP
     cureRegenHP: 0.65,         // Cast Regen below this HP
-    manaGemMP: 0.70,           // Use mana gems below this MP (aggressive, stay rich)
-    manaPotionMP: 0.50,        // Use mana potions at this MP
+    manaGemMP: 0.45,           // Use mana gems below this MP
+    manaPotionMP: 0.25,        // Use mana potions at this MP
     spiritPotionSP: 0.30,      // Use spirit gems/potions below this SP
     spiritStanceOC: 80,        // Activate Spirit Stance late (save SP for skills)
     skillOC: 75,               // Use weapon skills at this OC
-    useAttackSpells: true,     // Use cheap spells for channeling kickstart
+    useAttackSpells: false,    // Don't use attack spells (let channel proc naturally)
 
     // — Out of battle
     autoSell: true,
@@ -778,40 +778,33 @@ function getBestDamageSpell() {
 }
 
 // ── Channeling maintenance ──
-
-// Cheapest mana-costing spells to trigger channeling when it wears off
-const CHANNEL_TRIGGERS = ['Fiery Blast', 'Freeze', 'Shockblast', 'Gale'];
+//
+// Channeling: procs randomly when casting any mana-costing spell.
+// Proc chance = spell_cost / (base_mana * 1.2)
+// Cannot proc from spells cast while already Channeling.
+// Effect: next spell costs 1 MP and is 50% stronger (or 50% longer for buffs)
+// Duration: 5 ticks (15 with Mystic Gem in P-slot)
+//
+// Best trigger spells: Regen/Absorb (17 MP = ~6% proc chance each cast)
+// Cheaper spells have proportionally lower proc chance.
 
 function kickstartChanneling() {
     if (STATE.channeling) return null;
 
-    // Priority 1: refresh any buff that's about to expire (< 15 turns)
-    // This is more useful than wasting MP on attack spells
-    for (const b of BUFF_PRIORITY) {
-        const dur = buffDuration(b.icon);
-        if (dur > 0 && dur < 15 && STATE.mp > 0.15 && hasSpell(b.spell)) {
-            if (b.icon === 'regen' && STATE.hp >= CFG.cureRegenHP) continue;
-            return { type: 'spell', name: b.spell, selfTarget: true };
+    // Priority: cast or refresh a buff with a good MP cost for proc chance
+    // Regen has 17 MP = best cost/proc ratio among buffs we always want active
+    if (STATE.mp > 0.20) {
+        // Try buffs in priority order — Regen is best for sustain + channel proc
+        for (const b of BUFF_PRIORITY) {
+            const dur = buffDuration(b.icon);
+            // Only refresh if expiring soon (< 5 turns) or missing
+            if ((dur === 0 || dur < 5) && STATE.mp > 0.15 && hasSpell(b.spell)) {
+                if (b.icon === 'regen' && STATE.hp >= CFG.cureRegenHP) continue;
+                return { type: 'spell', name: b.spell, selfTarget: true };
+            }
         }
     }
 
-    // Priority 2: cast a buff that's missing entirely
-    for (const b of BUFF_PRIORITY) {
-        if (buffDuration(b.icon) === 0 && STATE.mp > 0.15 && hasSpell(b.spell)) {
-            if (b.icon === 'regen' && STATE.hp >= CFG.cureRegenHP) continue;
-            return { type: 'spell', name: b.spell, selfTarget: true };
-        }
-    }
-
-    // Priority 3: cheapest attack spell to trigger channeling (only if attack spells enabled)
-    if (CFG.useAttackSpells) {
-        const spell = findDmgSpell(CHANNEL_TRIGGERS);
-        if (spell && STATE.mp > 0.10) {
-            const t = findWeakestMonster();
-            if (t >= 0 && STATE.monsters[t] && STATE.monsters[t].hasAttribute('onclick'))
-                return { type: 'spell', name: spell, target: t };
-        }
-    }
     return null;
 }
 
diff --git a/scripts/latest.user.js b/scripts/latest.user.js
index fa8683a..c6ad7da 100644
--- a/scripts/latest.user.js
+++ b/scripts/latest.user.js
@@ -29,16 +29,16 @@ const CFG = {
     autoCure: true,
     autoSpirit: false,
 
-    // — Thresholds (benchmark-optimized)
+    // — Thresholds (simulation-backed)
     cureHP: 0.45,              // Cast Cure below this HP
     cureItemHP: 0.50,          // Use health items at this HP
     cureRegenHP: 0.65,         // Cast Regen below this HP
-    manaGemMP: 0.70,           // Use mana gems below this MP (aggressive, stay rich)
-    manaPotionMP: 0.50,        // Use mana potions at this MP
+    manaGemMP: 0.45,           // Use mana gems below this MP
+    manaPotionMP: 0.25,        // Use mana potions at this MP
     spiritPotionSP: 0.30,      // Use spirit gems/potions below this SP
     spiritStanceOC: 80,        // Activate Spirit Stance late (save SP for skills)
     skillOC: 75,               // Use weapon skills at this OC
-    useAttackSpells: true,     // Use cheap spells for channeling kickstart
+    useAttackSpells: false,    // Don't use attack spells (let channel proc naturally)
 
     // — Out of battle
     autoSell: true,
@@ -778,40 +778,33 @@ function getBestDamageSpell() {
 }
 
 // ── Channeling maintenance ──
-
-// Cheapest mana-costing spells to trigger channeling when it wears off
-const CHANNEL_TRIGGERS = ['Fiery Blast', 'Freeze', 'Shockblast', 'Gale'];
+//
+// Channeling: procs randomly when casting any mana-costing spell.
+// Proc chance = spell_cost / (base_mana * 1.2)
+// Cannot proc from spells cast while already Channeling.
+// Effect: next spell costs 1 MP and is 50% stronger (or 50% longer for buffs)
+// Duration: 5 ticks (15 with Mystic Gem in P-slot)
+//
+// Best trigger spells: Regen/Absorb (17 MP = ~6% proc chance each cast)
+// Cheaper spells have proportionally lower proc chance.
 
 function kickstartChanneling() {
     if (STATE.channeling) return null;
 
-    // Priority 1: refresh any buff that's about to expire (< 15 turns)
-    // This is more useful than wasting MP on attack spells
-    for (const b of BUFF_PRIORITY) {
-        const dur = buffDuration(b.icon);
-        if (dur > 0 && dur < 15 && STATE.mp > 0.15 && hasSpell(b.spell)) {
-            if (b.icon === 'regen' && STATE.hp >= CFG.cureRegenHP) continue;
-            return { type: 'spell', name: b.spell, selfTarget: true };
+    // Priority: cast or refresh a buff with a good MP cost for proc chance
+    // Regen has 17 MP = best cost/proc ratio among buffs we always want active
+    if (STATE.mp > 0.20) {
+        // Try buffs in priority order — Regen is best for sustain + channel proc
+        for (const b of BUFF_PRIORITY) {
+            const dur = buffDuration(b.icon);
+            // Only refresh if expiring soon (< 5 turns) or missing
+            if ((dur === 0 || dur < 5) && STATE.mp > 0.15 && hasSpell(b.spell)) {
+                if (b.icon === 'regen' && STATE.hp >= CFG.cureRegenHP) continue;
+                return { type: 'spell', name: b.spell, selfTarget: true };
+            }
         }
     }
 
-    // Priority 2: cast a buff that's missing entirely
-    for (const b of BUFF_PRIORITY) {
-        if (buffDuration(b.icon) === 0 && STATE.mp > 0.15 && hasSpell(b.spell)) {
-            if (b.icon === 'regen' && STATE.hp >= CFG.cureRegenHP) continue;
-            return { type: 'spell', name: b.spell, selfTarget: true };
-        }
-    }
-
-    // Priority 3: cheapest attack spell to trigger channeling (only if attack spells enabled)
-    if (CFG.useAttackSpells) {
-        const spell = findDmgSpell(CHANNEL_TRIGGERS);
-        if (spell && STATE.mp > 0.10) {
-            const t = findWeakestMonster();
-            if (t >= 0 && STATE.monsters[t] && STATE.monsters[t].hasAttribute('onclick'))
-                return { type: 'spell', name: spell, target: t };
-        }
-    }
     return null;
 }
 
diff --git a/src/config.js b/src/config.js
index f8909c3..27faed8 100644
--- a/src/config.js
+++ b/src/config.js
@@ -14,16 +14,16 @@ const CFG = {
     autoCure: true,
     autoSpirit: false,
 
-    // — Thresholds (benchmark-optimized)
+    // — Thresholds (simulation-backed)
     cureHP: 0.45,              // Cast Cure below this HP
     cureItemHP: 0.50,          // Use health items at this HP
     cureRegenHP: 0.65,         // Cast Regen below this HP
-    manaGemMP: 0.70,           // Use mana gems below this MP (aggressive, stay rich)
-    manaPotionMP: 0.50,        // Use mana potions at this MP
+    manaGemMP: 0.45,           // Use mana gems below this MP
+    manaPotionMP: 0.25,        // Use mana potions at this MP
     spiritPotionSP: 0.30,      // Use spirit gems/potions below this SP
     spiritStanceOC: 80,        // Activate Spirit Stance late (save SP for skills)
     skillOC: 75,               // Use weapon skills at this OC
-    useAttackSpells: true,     // Use cheap spells for channeling kickstart
+    useAttackSpells: false,    // Don't use attack spells (let channel proc naturally)
 
     // — Out of battle
     autoSell: true,
diff --git a/src/strategy-engine.js b/src/strategy-engine.js
index 2036303..bda2152 100644
--- a/src/strategy-engine.js
+++ b/src/strategy-engine.js
@@ -133,40 +133,33 @@ function getBestDamageSpell() {
 }
 
 // ── Channeling maintenance ──
-
-// Cheapest mana-costing spells to trigger channeling when it wears off
-const CHANNEL_TRIGGERS = ['Fiery Blast', 'Freeze', 'Shockblast', 'Gale'];
+//
+// Channeling: procs randomly when casting any mana-costing spell.
+// Proc chance = spell_cost / (base_mana * 1.2)
+// Cannot proc from spells cast while already Channeling.
+// Effect: next spell costs 1 MP and is 50% stronger (or 50% longer for buffs)
+// Duration: 5 ticks (15 with Mystic Gem in P-slot)
+//
+// Best trigger spells: Regen/Absorb (17 MP = ~6% proc chance each cast)
+// Cheaper spells have proportionally lower proc chance.
 
 function kickstartChanneling() {
     if (STATE.channeling) return null;
 
-    // Priority 1: refresh any buff that's about to expire (< 15 turns)
-    // This is more useful than wasting MP on attack spells
-    for (const b of BUFF_PRIORITY) {
-        const dur = buffDuration(b.icon);
-        if (dur > 0 && dur < 15 && STATE.mp > 0.15 && hasSpell(b.spell)) {
-            if (b.icon === 'regen' && STATE.hp >= CFG.cureRegenHP) continue;
-            return { type: 'spell', name: b.spell, selfTarget: true };
+    // Priority: cast or refresh a buff with a good MP cost for proc chance
+    // Regen has 17 MP = best cost/proc ratio among buffs we always want active
+    if (STATE.mp > 0.20) {
+        // Try buffs in priority order — Regen is best for sustain + channel proc
+        for (const b of BUFF_PRIORITY) {
+            const dur = buffDuration(b.icon);
+            // Only refresh if expiring soon (< 5 turns) or missing
+            if ((dur === 0 || dur < 5) && STATE.mp > 0.15 && hasSpell(b.spell)) {
+                if (b.icon === 'regen' && STATE.hp >= CFG.cureRegenHP) continue;
+                return { type: 'spell', name: b.spell, selfTarget: true };
+            }
         }
     }
 
-    // Priority 2: cast a buff that's missing entirely
-    for (const b of BUFF_PRIORITY) {
-        if (buffDuration(b.icon) === 0 && STATE.mp > 0.15 && hasSpell(b.spell)) {
-            if (b.icon === 'regen' && STATE.hp >= CFG.cureRegenHP) continue;
-            return { type: 'spell', name: b.spell, selfTarget: true };
-        }
-    }
-
-    // Priority 3: cheapest attack spell to trigger channeling (only if attack spells enabled)
-    if (CFG.useAttackSpells) {
-        const spell = findDmgSpell(CHANNEL_TRIGGERS);
-        if (spell && STATE.mp > 0.10) {
-            const t = findWeakestMonster();
-            if (t >= 0 && STATE.monsters[t] && STATE.monsters[t].hasAttribute('onclick'))
-                return { type: 'spell', name: spell, target: t };
-        }
-    }
     return null;
 }