Has anyone had any problems with the electronic speed control on their
Hitachi M12V? In the middle of a large job, it's starting to act up, reving
up then slowing down, whether I'm in a cut or not. Pulled the brushes, lots
left there, although some minor chips out of a couple of corners. cleaned
out the brush housings (just vac'd it) and put it all back together. Runs
fine for one cut, then starts acting up again.

The cut I'm making is with a 1 1/8" pattern cutting bit (bearing on the
shaft and unused for this cut) removing about a 1/4" depth, by a 1/2" width
per pass.

Thanks,

Joe