You were right TFOX! I cheated , according to your scenario. I dropped 109 gns of arrow weight and went from 65lbs KE to 67lbs KE , but it looks like I had other help. I gained 35fps by dropping everything but the loop from my string and going from a whisker biscuit to the NAP drop away. That wouldn't be a fair test , I stand corrected<img src=icon_smile_blush.gif border=0 align=middle> Had I gone strictly by dropping 109 gns of arrow weight , I only would have gained 22fps which would have dropped my KE to around 61ftlbs.