Diff oils...

[jhautz]

I dont think rotating the diff will make a difference in the performance of the dif.

I'm not sure I understand the problem completely. Is it still just unloading all the power to the front wheels? ie.. pizza cutters?

If your not unloading to the front wheel then where whould the power be going. the 1515/2.5d on 6s is an animal. You should be able to take flight with that. COuld it be sub par batteries limiting you? SOme setting in the esc like a punch control or spool up timer or current limiter?

EDIT. I just noticed you said a123 6s. I was thinking lipo. Are you running at least 2p on the a123 cells? In 1p format they dont have the grunt to fuel that beast.