I would like to post a great experience I had relieving a worry about a problem with my superdrive 80, and how great Jeff was. Last night, I bought/traded a Superdrive 30 to have fun with and compare. I had the setup I'm sure 100's of us have been in with one head above the other and you're playing, switching cables, playing...etc. to hear the differences in the amps. Lots of fun ...but, after a while, I was playing the 80 and it started to drop in volume and sound like an AM radio on and off...really strange. I got worried because of big gig on Sat. what to do?! I email Jeff right away asking his advice since I had been pulling 2 tubes and was worried I burnt something inside. I'm happy to report that Jeff replied the next morning right away with what was going on. My FX loop was acting up and needed to be cleaned. all the pulling in and out at testing might have gotten something jammed.... so its all fixed! This isn't a real huge deal, its just great to know that there is someone on the other end of an email that can really help out...AND fast!