Blues Driver / Distortion / OverDrive / Super Overdrive Can somebody give me an idea what the differences are in these, especially in terms of "gain on tap", transparency, and dynamics? I'm really looking for something that's pretty close to a clean bost for solos and such- I like my amps, and I just want to hit the amp a little harder for additional volume during solos. I'll run it with the drive low and level high. Plus, I want something cheap. Can anyhbody enlighten me?