I don't know what the heck I'm doing. It started out as a Musicman head. Now it's an ODS100. The cleans on this amp are amazing, but the OD isn't all that. I know I'm doing something wrong. I can't seem to get the OD channel up to the same volume as the clean. Also, I'm getting a reall flubby tone out of the low end even with the Master down. I've heard Andy's amps sound great, but I'm not real familiar with these amps so how the heck does the OD work in this thing? Can I change the power tubes out and will that clean up the low end? Also, do these amps behave well with a Hotplate? The problem might be that the amp isn't up loud enough, but my god it will kill you at any reasonable volume. Thanks for any advice.