diff --git a/05/cubicpulse.frag b/05/cubicpulse.frag
index a365991..f1461f5 100644
--- a/05/cubicpulse.frag
+++ b/05/cubicpulse.frag
@@ -15,9 +15,9 @@ float cubicPulse( float c, float w, float x ){
     return 1.0 - x*x*(3.0-2.0*x);
 }
 
-float plot(vec2 _st, float _pct){
-  return  smoothstep( _pct-0.02, _pct, _st.y) - 
-          smoothstep( _pct, _pct+0.02, _st.y);
+float plot(vec2 st, float pct){
+  return  smoothstep( pct-0.02, pct, st.y) - 
+          smoothstep( pct, pct+0.02, st.y);
 }
 
 void main() {
diff --git a/05/expo.frag b/05/expo.frag
index 377b0ae..8f02d22 100644
--- a/05/expo.frag
+++ b/05/expo.frag
@@ -8,9 +8,9 @@ uniform vec2 u_resolution;
 uniform vec2 u_mouse;
 uniform float u_time;
 
-float plot(vec2 _st, float _pct){
-  return  smoothstep( _pct-0.01, _pct, _st.y) - 
-          smoothstep( _pct, _pct+0.01, _st.y);
+float plot(vec2 st, float pct){
+  return  smoothstep( pct-0.02, pct, st.y) - 
+          smoothstep( pct, pct+0.02, st.y);
 }
 
 void main() {
diff --git a/05/expstep.frag b/05/expstep.frag
index bf25534..60369d4 100644
--- a/05/expstep.frag
+++ b/05/expstep.frag
@@ -12,9 +12,9 @@ float expStep( float x, float k, float n ){
     return exp( -k*pow(x,n) );
 }
 
-float plot(vec2 _st, float _pct){
-  return  smoothstep( _pct-0.01, _pct, _st.y) - 
-          smoothstep( _pct, _pct+0.01, _st.y);
+float plot(vec2 st, float pct){
+  return  smoothstep( pct-0.02, pct, st.y) - 
+          smoothstep( pct, pct+0.02, st.y);
 }
 
 void main() {
diff --git a/05/impulse.frag b/05/impulse.frag
index 93995bc..9ca5091 100644
--- a/05/impulse.frag
+++ b/05/impulse.frag
@@ -13,9 +13,9 @@ float impulse( float k, float x ){
     return h*exp(1.0-h);
 }
 
-float plot(vec2 _st, float _pct){
-  return  smoothstep( _pct-0.01, _pct, _st.y) - 
-          smoothstep( _pct, _pct+0.01, _st.y);
+float plot(vec2 st, float pct){
+  return  smoothstep( pct-0.02, pct, st.y) - 
+          smoothstep( pct, pct+0.02, st.y);
 }
 
 void main() {
diff --git a/05/linear.frag b/05/linear.frag
index 821d0f8..e594a92 100644
--- a/05/linear.frag
+++ b/05/linear.frag
@@ -7,9 +7,9 @@ uniform vec2 u_mouse;
 uniform float u_time;
 
 // Plot a line on Y using a value between 0.0-1.0
-float plot(vec2 _st, float _pct){
-  return  smoothstep( _pct-0.01, _pct, _st.y) - 
-          smoothstep( _pct, _pct+0.01, _st.y);
+float plot(vec2 st, float pct){
+  return  smoothstep( pct-0.02, pct, st.y) - 
+          smoothstep( pct, pct+0.02, st.y);
 }
 
 void main() {
diff --git a/05/parabola.frag b/05/parabola.frag
index 21dfadc..6b9f5ed 100644
--- a/05/parabola.frag
+++ b/05/parabola.frag
@@ -11,9 +11,9 @@ float parabola( float x, float k ){
     return pow( 4.0*x*(1.0-x), k );
 }
 
-float plot(vec2 _st, float _pct){
-  return  smoothstep( _pct-0.01, _pct, _st.y) - 
-          smoothstep( _pct, _pct+0.01, _st.y);
+float plot(vec2 st, float pct){
+  return  smoothstep( pct-0.02, pct, st.y) - 
+          smoothstep( pct, pct+0.02, st.y);
 }
 
 void main() {
diff --git a/05/pcurve.frag b/05/pcurve.frag
index e6cb85e..33fc204 100644
--- a/05/pcurve.frag
+++ b/05/pcurve.frag
@@ -13,9 +13,9 @@ float pcurve( float x, float a, float b ){
     return k * pow( x, a ) * pow( 1.0-x, b );
 }
 
-float plot(vec2 _st, float _pct){
-  return  smoothstep( _pct-0.01, _pct, _st.y) - 
-          smoothstep( _pct, _pct+0.01, _st.y);
+float plot(vec2 st, float pct){
+  return  smoothstep( pct-0.02, pct, st.y) - 
+          smoothstep( pct, pct+0.02, st.y);
 }
 
 void main() {
diff --git a/05/smoothstep.frag b/05/smoothstep.frag
index 350de26..7111a30 100644
--- a/05/smoothstep.frag
+++ b/05/smoothstep.frag
@@ -8,9 +8,9 @@ uniform vec2 u_resolution;
 uniform vec2 u_mouse;
 uniform float u_time;
 
-float plot(vec2 _st, float _pct){
-  return  smoothstep( _pct-0.01, _pct, _st.y) - 
-          smoothstep( _pct, _pct+0.01, _st.y);
+float plot(vec2 st, float pct){
+  return  smoothstep( pct-0.02, pct, st.y) - 
+          smoothstep( pct, pct+0.02, st.y);
 }
 
 void main() {
diff --git a/05/step.frag b/05/step.frag
index 41a82f0..927a213 100644
--- a/05/step.frag
+++ b/05/step.frag
@@ -7,9 +7,9 @@ precision mediump float;
 uniform vec2 u_resolution;
 uniform float u_time;
 
-float plot(vec2 _st, float _pct){
-  return  smoothstep( _pct-0.01, _pct, _st.y) - 
-          smoothstep( _pct, _pct+0.01, _st.y);
+float plot(vec2 st, float pct){
+  return  smoothstep( pct-0.02, pct, st.y) - 
+          smoothstep( pct, pct+0.02, st.y);
 }
 
 void main() {