diff --git a/sim/hunter/aimed_shot.go b/sim/hunter/aimed_shot.go
index 2ad27901cd..cbe6283fbc 100644
--- a/sim/hunter/aimed_shot.go
+++ b/sim/hunter/aimed_shot.go
@@ -20,9 +20,9 @@ func (hunter *Hunter) registerAimedShotSpell(timer *core.Timer) {
 
 		ManaCost: core.ManaCostOptions{
 			BaseCost: 0.08,
-			Multiplier: 1 *
-				(1 - 0.03*float64(hunter.Talents.Efficiency)) *
-				(1 - 0.05*float64(hunter.Talents.MasterMarksman)),
+			Multiplier: 1 -
+				0.03*float64(hunter.Talents.Efficiency) -
+				0.05*float64(hunter.Talents.MasterMarksman),
 		},
 		Cast: core.CastConfig{
 			DefaultCast: core.Cast{
diff --git a/sim/hunter/black_arrow.go b/sim/hunter/black_arrow.go
index e69320cb30..c5eee1a50c 100644
--- a/sim/hunter/black_arrow.go
+++ b/sim/hunter/black_arrow.go
@@ -22,9 +22,9 @@ func (hunter *Hunter) registerBlackArrowSpell(timer *core.Timer) {
 
 		ManaCost: core.ManaCostOptions{
 			BaseCost: 0.06,
-			Multiplier: 1 *
-				(1 - 0.03*float64(hunter.Talents.Efficiency)) *
-				(1 - 0.2*float64(hunter.Talents.Resourcefulness)),
+			Multiplier: 1 -
+				0.03*float64(hunter.Talents.Efficiency) -
+				0.2*float64(hunter.Talents.Resourcefulness),
 		},
 		Cast: core.CastConfig{
 			DefaultCast: core.Cast{
diff --git a/sim/hunter/chimera_shot.go b/sim/hunter/chimera_shot.go
index b49d109b5b..1af575288a 100644
--- a/sim/hunter/chimera_shot.go
+++ b/sim/hunter/chimera_shot.go
@@ -22,9 +22,9 @@ func (hunter *Hunter) registerChimeraShotSpell() {
 
 		ManaCost: core.ManaCostOptions{
 			BaseCost: 0.12,
-			Multiplier: 1 *
-				(1 - 0.03*float64(hunter.Talents.Efficiency)) *
-				(1 - 0.05*float64(hunter.Talents.MasterMarksman)),
+			Multiplier: 1 -
+				0.03*float64(hunter.Talents.Efficiency) -
+				0.05*float64(hunter.Talents.MasterMarksman),
 		},
 		Cast: core.CastConfig{
 			DefaultCast: core.Cast{
diff --git a/sim/hunter/steady_shot.go b/sim/hunter/steady_shot.go
index 667500453c..b64b3247ca 100644
--- a/sim/hunter/steady_shot.go
+++ b/sim/hunter/steady_shot.go
@@ -53,9 +53,9 @@ func (hunter *Hunter) registerSteadyShotSpell() {
 
 		ManaCost: core.ManaCostOptions{
 			BaseCost: 0.05,
-			Multiplier: 1 *
-				(1 - 0.03*float64(hunter.Talents.Efficiency)) *
-				(1 - 0.05*float64(hunter.Talents.MasterMarksman)),
+			Multiplier: 1 -
+				0.03*float64(hunter.Talents.Efficiency) -
+				0.05*float64(hunter.Talents.MasterMarksman),
 		},
 		Cast: core.CastConfig{
 			DefaultCast: core.Cast{