'Lo all! I'm going to be taking my fist stab at amp modding with my Ceriatone TMB. I've gone back and forth with Nik (what a great guy!) and with his advice I feel prepared to move forward. First of all, I love the amp. My goals are to make the volume and tone controls more usable, to get a little more clean headroom, and to have the master affect both channels. Here is the layout from Ceriatone: http://ceriatone.com/images/layoutPic/marshallLayout/TMBceriatone.jpg And here is what I plan to do to it: http://img517.imageshack.us/img517/5486/moddedtmblayouttm8.jpg For the resistor change Nik said I could use the regular concrete type, but I found some NOS ones at Torres, so I'm going with that. The replacement pots are CTS, also from Torres. If it turns out not as good as it was, they are all easily reversible mods. I'll post up how it turns out once I get it done!