I feel your pain. Last summer, purchased a Ballistic motor to run on a Traxxas VX-L 3S esc. Got it home, motor wouldn't work. After contacting Novak, all cs kept telling me was that it was a problem with the esc, and that Traxxas' esc won't work with Novak motors. So what do I do? Go to my LHS and get a screaming deal on a new LRP Sphere Comp esc. Get it home, Ballistic motor still won't work. I call Novak cs again, and once again, its the esc's fault, and I'm told that the Ballistic motor will only work with a Novak esc.

At this point I took the motor to my LHS, and had it tested thoroughly on every esc they had available to test on...verdict, burned up sensor board on the Ballistic motor. Call Novak again, and even had to get my LHS rep to step in and verify that I didn't personnally damage the motor, finally they agreed to replace under warranty.

Got the motor back, then the mounting threads on the bell are just a hair oversized to the point that no mounting screw will grab the threads to be able to tighten it down in a car. Ended up having to by a new bell. ANd guess what, it does work with any sensored esc.

Haven't had any problems with my current GTB2 VTA setup I just reluctantly purchased, so I could be legal in VTA class, but definitely have had my issues with Novak products.