Any experience with the stand-alone router speed controls? I have a 2-year
old single speed Bosch 1617, love it and I don't want to replace it. I
would, however, like the capability to control the speed and the stand-alone
controllers look like a good investment.

Only concern - Is any compromise on the router motor,or internal circuitry
from a reliability standpoint? I don't want to cook my Bosch.