Can you leave the resistors to ground on, or do you have to take them off every time after you bias the amp? My Mesa DC-10 came with a bias pot installed, and instead of spending the coin on a Bias-Rite when the time comes to replace the power amp tubes, I'm thinking of just doing it with my Fluke instead. I've read that you replace the pins to ground with a 1k resistor, but no where does it say to remove them after you get through. As opposed to releasing the magic smoke, I'd thought I'd ask first.