hi stu!! (just sent you an email too)
yes im running a friends lipo at the moment (not had time to get one myself).. its a reedy 5000mah 20C. i cant fit any pinion bigger than a 28..not physically possible to mesh with spur gear??
and as for neo.. Im helping to build the Track mate! apart of DXR
looking forward to racing the mp9 there..
Gurdy