Buy the slipper basket.

http://www.rctech.net/forum/r-c-item...ch-basket.html

You will have a repeat performance of this if you continue to use the 550 motor even with it locked down because it still slips excessively. There just isn't enough surface area there to handle the torque of a 550, much less handle the torque and slip at all.

I think this is the biggest reason the AE factory guys are running the 540 motors. IMO this is the only must have aftermarket part for all users.