Looking for a little help here. My rig is fairly straightforward; I plug into a Mesa Mark III combo and the only effect I use is an Ibanez DD1000 digital delay through the fx loop for some delay and light chorusing. The other guitar player in the project I'm in is a rack junkie. He uses one of those Line 6 modeling preamps w/ all the bells and whistles including a volume pedal. I need to find something that will work for boosting my volume for solos. Here is the key..............whatever it is cannot change or affect my tone!!! I won't compromise there! Your suggestions and recommendations please!!