I had a chance to run out to Suhr's shop this week, eat some lunch and tour the shop. Got a chance to see John and the gang hard at work fine tuning everything. I learned two things 1) You can't say enough nice things about John, he is one of the nicest most easy going friendly guys I have met in this business. 2) The new OD 100/50 kicks major ass! WOW I am impressed! With the added presence/brilliance/pump/feedback control (whatever you want to call it) on the back of the amp, this amp covers so much ground at a reasonable volume level and NEVER looses that FEEL. I am not a MV channel switching kind of guy but.........I have been loosing sleep about the tone from this beast since hearing and playing it..... This is a great time to be a guitar player!