Jaybee,
I'm using an EA epic stock motor with xxx brushes. Seems like the same or similar power to the 767's but you get to run them again and again. I have 4 runs on the motor i have and will see how long they last. I like to cut some slots into the face of the brush as I'm told these brushes don't like to be re-serrated. So far so good. didn't get chance to run today as not enough 12th scales to run.
By the way, I know which charger Eric is running right now but I'm not telling
Chris