diff --git a/calc/src/mechanics/gen56.ts b/calc/src/mechanics/gen56.ts
index ca24008d8..1a3ec0360 100644
--- a/calc/src/mechanics/gen56.ts
+++ b/calc/src/mechanics/gen56.ts
@@ -461,7 +461,7 @@ export function calculateBasePowerBWXY(
     break;
   case 'Low Kick':
   case 'Grass Knot':
-    const w = getWeight(defender, desc, true);
+    const w = getWeight(defender, desc, 'defender');
     basePower = w >= 200 ? 120 : w >= 100 ? 100 : w >= 50 ? 80 : w >= 25 ? 60 : w >= 10 ? 40 : 20;
     desc.moveBP = basePower;
     break;
@@ -472,8 +472,8 @@ export function calculateBasePowerBWXY(
   case 'Heavy Slam':
   case 'Heat Crash':
     const wr =
-        getWeight(attacker, desc, false) /
-        getWeight(defender, desc, true);
+        getWeight(attacker, desc, 'attacker') /
+        getWeight(defender, desc, 'defender');
     basePower = wr >= 5 ? 120 : wr >= 4 ? 100 : wr >= 3 ? 80 : wr >= 2 ? 60 : 40;
     desc.moveBP = basePower;
     break;
diff --git a/calc/src/mechanics/gen789.ts b/calc/src/mechanics/gen789.ts
index 24f7c7fb9..958cbe983 100644
--- a/calc/src/mechanics/gen789.ts
+++ b/calc/src/mechanics/gen789.ts
@@ -716,7 +716,7 @@ export function calculateBasePowerSMSSSV(
     break;
   case 'Low Kick':
   case 'Grass Knot':
-    const w = getWeight(defender, desc, true);
+    const w = getWeight(defender, desc, 'defender');
     basePower = w >= 200 ? 120 : w >= 100 ? 100 : w >= 50 ? 80 : w >= 25 ? 60 : w >= 10 ? 40 : 20;
     desc.moveBP = basePower;
     break;
@@ -733,8 +733,8 @@ export function calculateBasePowerSMSSSV(
   case 'Heavy Slam':
   case 'Heat Crash':
     const wr =
-        getWeight(attacker, desc, false) /
-        getWeight(defender, desc, true);
+        getWeight(attacker, desc, 'attacker') /
+        getWeight(defender, desc, 'defender');
     basePower = wr >= 5 ? 120 : wr >= 4 ? 100 : wr >= 3 ? 80 : wr >= 2 ? 60 : 40;
     desc.moveBP = basePower;
     break;
diff --git a/calc/src/mechanics/util.ts b/calc/src/mechanics/util.ts
index bce2190ea..42ad42953 100644
--- a/calc/src/mechanics/util.ts
+++ b/calc/src/mechanics/util.ts
@@ -552,7 +552,7 @@ export function getShellSideArmCategory(source: Pokemon, target: Pokemon): MoveC
   return physicalDamage > specialDamage ? 'Physical' : 'Special';
 }
 
-export function getWeight(pokemon: Pokemon, desc: RawDesc, isDefender: boolean) {
+export function getWeight(pokemon: Pokemon, desc: RawDesc, role: 'defender' | 'attacker') {
   let factor = 1;
 
   let abilityUsed = true;
@@ -560,14 +560,12 @@ export function getWeight(pokemon: Pokemon, desc: RawDesc, isDefender: boolean)
   else if (pokemon.hasAbility('Light Metal')) factor *= 0.5;
   else abilityUsed = false;
   if (abilityUsed) {
-    if (isDefender) desc.defenderAbility = pokemon.ability;
-    else desc.attackerAbility = pokemon.ability;
+    desc[`${role}Ability`] = pokemon.ability;
   }
 
   if (pokemon.hasItem('Float Stone')) {
     factor *= 0.5;
-    if (isDefender) desc.defenderItem = pokemon.item;
-    else desc.attackerItem = pokemon.item;
+    desc[`${role}Item`] = pokemon.item;
   }
 
   return Math.max(Math.trunc(factor * pokemon.weightkg * 10), 1) / 10;