Hey all. I've had my zip zap se mosfet mod by micro amps. It worked great for a while. Now all of a sudden it is jittery. I mean that when it accelerates it goes then stops for a split second and goes again and cuts out for a split second and goes again. It is much faster but it just seems that it is jerky. I am also having trouble steering this thing. I haven't found the right adjustment for it yet. I charged it many times before each use. Do I have a bad connection somewhere? Is my battery crap already? Anyone have any suggestions?