Hey folks, it's been a while since I've been on here, and it feels good just to listen, learn, and laugh at what everybody has got going on! Anyway, I've got an old SVT3 Pro that I have had for a few years. I like the amp. Its not an SVT Heritage, nor any of the 100%, Grade A USDA Prime Tube goodness, but I was on a budget and I do like the amp. My question is this. Is there anyway I can get more overdrive or grit, or nasty out of it? I've got JJ's 12AX7's in the preamp section or whatever, then I have a Tung-Sol 12AX7 and a 1950 something NOS Sylvania 12AU7 that leads into the mosfet Poweramp. By changing any of these tubes (and I'm assuming it would be the latter 2 tubes) give me anymore overdrive that sounds good? One more thing. Would it be better just to sell it and get a Portaflex PF50T? I've not played one, but they seem to sound good on clips. Are they as loud an SVT 3? I know the SVT3 is like 350 watts and the PF is 50, but I've seen 15 watt guitar tube amps blow 800 watt class D amps out of the room. Anyway, hope all is well with everyone and y'all have a good day! Thanks!