this is actually a continuation of an earlier post, modding an old heathkit amp. but i thought id start fresh here. are there any mods you guys like for a princeton 112 plus? i find the distortion to sound thin, sort of wispy. id like to fatten it up a bit, more "chunky". any of you ever do ythis? if so, how did it work out, were you happy with the end result?

i have an old heathkit ta-16 solid state amp that actually sounds pretty good, but id love to hear it with some distortion. my fender princeton 1/12 has two volumes- its called gain and master volume i believe. is it possible to add another volume pot into the mix to be able to get distortion without turning the poor thing all the way up and rattling the walls? if so, could the volume pot  be a push/pull pot for bright/warm?
Darren