I have a 2203 Metro build up and running. I'm doing some tweaks and trying brown up the sound, basically. The Friedman Marshall style amp overdrive is the direction I'm going tonally. Nothing over the top, though. I'm wondering if struggling to get those tones with a cascaded preamp is the wrong idea? Maybe those tones are easier achieved with a PPIMV? The couple mods I've done are leading me back to the grainyness I remember from my 2204. I want smoother and responsive high gain; I really don't care if it sounds like a JCM 800. I could easily rip out the existing master and do the PPIMV. Thought from guys who have used both?