diff --git a/bench/cec2020/benchFunctions.go b/bench/cec2020/benchFunctions.go
index b098c4d..d454aac 100644
--- a/bench/cec2020/benchFunctions.go
+++ b/bench/cec2020/benchFunctions.go
@@ -81,13 +81,10 @@ func Hybrid1(x []float64) float64 {
 	p := []float64{0.3, 0.3, 0.4}
 	gnx := getGnx(p, fnx)
 
-	z := newOpt(nx)
-	mz := getMz(x, z)
-
 	var sum float64
 
 	for i := range funcs {
-		sum += funcs[i](mz) * gnx[i]
+		sum += funcs[i](x) * gnx[i]
 	}
 
 	return sum
@@ -108,13 +105,10 @@ func Hybrid2(x []float64) float64 {
 	p := []float64{0.2, 0.2, 0.3, 0.3}
 	gnx := getGnx(p, fnx)
 
-	z := newOpt(nx)
-	mz := getMz(x, z)
-
 	var sum float64
 
 	for i := range funcs {
-		sum += funcs[i](mz) * gnx[i]
+		sum += funcs[i](x) * gnx[i]
 	}
 
 	return sum
@@ -136,13 +130,10 @@ func Hybrid3(x []float64) float64 {
 	p := []float64{0.1, 0.2, 0.2, 0.2, 0.3}
 	gnx := getGnx(p, fnx)
 
-	z := newOpt(nx)
-	mz := getMz(x, z)
-
 	var sum float64
 
 	for i := range funcs {
-		sum += funcs[i](mz) * gnx[i]
+		sum += funcs[i](x) * gnx[i]
 	}
 
 	return sum
diff --git a/bench/cec2020/benchFunctions_test.go b/bench/cec2020/benchFunctions_test.go
index 5f1e6b8..2fe14d3 100644
--- a/bench/cec2020/benchFunctions_test.go
+++ b/bench/cec2020/benchFunctions_test.go
@@ -51,7 +51,7 @@ func TestGriewank(t *testing.T) {
 
 func TestHybrid1(t *testing.T) {
 	in := []float64{-9.2, 10, .7, 3, -80.2843}
-	want := 0.00025455132345086895
+	want := 2.0385039193698734e+08
 
 	got := Hybrid1(in)
 
@@ -62,7 +62,7 @@ func TestHybrid1(t *testing.T) {
 
 func TestHybrid2(t *testing.T) {
 	in := []float64{-9.2, 10, .7, 3, -80.2843}
-	want := 25.298615746321026
+	want := 4.6901057350488175e+06
 
 	got := Hybrid2(in)
 
@@ -73,7 +73,7 @@ func TestHybrid2(t *testing.T) {
 
 func TestHybrid3(t *testing.T) {
 	in := []float64{-9.2, 10, .7, 3, -80.2843}
-	want := 16.298615746321026
+	want := 2.0618485725498265e+08
 
 	got := Hybrid3(in)
 
diff --git a/bench/cec2020/helperFunctions.go b/bench/cec2020/helperFunctions.go
index 79147d1..fc71d7f 100644
--- a/bench/cec2020/helperFunctions.go
+++ b/bench/cec2020/helperFunctions.go
@@ -173,6 +173,7 @@ func getGnx(p []float64, fnx float64) []float64 {
 }
 
 // getMz calculates Mz.
+// nolint: unused
 func getMz(x []float64, z []float64) []float64 {
 	nx := len(x)
 	mz := make([]float64, nx)