anyone use powermaster alternator?

I used to have a chrome power master unit. Had the same problems you mention. I went with a GM one wire conversion unit I got from summit. The first one I fried because one of the damn mounting point slipped while installing it and it arced the battery. But it had a one year warranty so they sent me another. Been on the car for 2 years no problems and I run a hooligan bulb upgrade headlight.