Originally Posted by Benf207
I've tried it with the Zippy, Gforce and Gens Ace batteries and the problem persists.
Tracknoob: The problem occurs at all levels of battery power.
So, should I call HH about the motor or is this a different problem?
You absolutely have a problem with your motor. Tell them that you've tried two ESC's and multiple batteries and the problem still persists.
It would be even better if you could try those batteries on a different motor just to prove that it's not the batteries but I think it's pretty obvious without even doing that.