I have a question. I have been running a Fender Super Champ XD for about 5 years on the same set of tubes. I have played a few very small live gigs were it got pushed very hard. I have never replaced the tubes on it since i bought it. I havent had one blow on my yet, is there any reason to change them? If so, how often do you guys change your tubes on your amp? If you have this amp, what tubes do you recommend putting in? I hardly ever gig with it unless were doing a very small gig. I use it mainly for jamming at home, so it gets used ALOT.