problem but dunno?!

Yeah, thats the thing though, i dont have or have access to an eagletree. gearing is stock, no driveline binding at all. I do however, have access to a multimeter.

Im hoping its not his batts, there his only lipos. I will chuck them on the balancer today when i get the chance & see if that helps. it cant be both his lipos though, i have only 1 turnigy 5ah & its been great...