Dang! Just got the bill for a cleaning, retube, resistor replacement! $440! My 400+ is one of the older models with the attached power cable. It sounds great and was totally worth the price to get this major work done, since the last time it got the tubes changed was about 4 years ago. Jeff at Velvetone tried to find used and matched power and preamp tubes to avoid a full retube of the head, and found a pretty solid solution; but ultimately, the best fix was to replace everything with a new matched set. In addition to the tubes and resistors, he fixed my head case, too! I think the guy is probably undercharging/not logging all of his hours in his billing! The tube expense was a little bit more costly than my old SVT. Anyone have the same experience? I've had Jeff work on several of my amps before. He does great things with amps. The guy is a total nerd about his work in the best kind of way. Whenever you go in to speak with him, or if he ever calls you, he'll talk at you for an hour about everything that he's done or thinks is wrong with your amp. Guy is a treasure trove of experience. Anyway, just wanted to know about your Mesa tube amp experiences, or if you've ever worked with Jeff Stone in the past.