I tried both a JG and a TM arm. Same results every time. I sanded down the arm and am working with a PCS mod. I am looking into a custom arm so we will see where that goes.awagg said:Really? You probably have a lemon arm. Most people say there is no noticeable difference in the stock, and "precision" hop up arms. I bet if you got a new arm, this would go away. Your bucking could be positioned "off" too, but I'm sure you've tried that.