Hi Y'all, I've got and older SS Rectified AC 30, that came in. I'm toying with the idea of performing Kevin's (the TUT author) suggested mods to save the output tubes in this amp, along with ability to pull two outputs for half power (more power scaling for dummies). Namely install higher screen 1k1 and grid stoppers 2k2 in the outputs. There is some discussion I've heard about these changinging the tone of the amp too much. Anyone tried it? OR Is this one of those...only her hair dresser knows for sure?