Originally Posted by Sushi Boy
I have a good 7 or 8 runs on my f brushes and the serrations are still there (in a stock motor). I would cut every 2-3 runs though, and just clean the brushes and reseat them. Try purple on the positive, and red on the negative to start.
-Korey
Are the new batch of F brushes alot better than the old ones? Reason i ask is with the old ones I'd get about 1-2 runs before the serrations were gone, the motor still ran strong after that but i thought that was weird?