Forestroke - sounds great on the EP ... I am dying to buy a Super Chipmunk again and this time power it with my YS110 perhaps or a brand new Saito 100. Here is a cheap outrunner that I got, it can turn a GWS9x7 at 6,500 RPM on 3S but still a little over loading. I think it will be great on an 8x4 or 8x6. It was making a GWS COrsair do 3D!!!