Are the problems of overheating and burning out fixed on the newer production models of these? I want a Marshall, I want a preferably 1x12 combo, classic Marshall sound and I don't want alot of hassles w/ it. The two amps I have now are super reliable and I like it that way, but my new R7 is telling me it wants a Marshall. I thought I had remembered reading that the newer ones have pretty much fixed the flaws that had previously caused problems. If not, I might look for a used bluesbreaker, but those things are kind of heavy but I might put up w/ the weight as I have played one before and loved it.