I have an Enforcer that I had some work done on last year. It didn't work at all but it turned out to be mostly bad solder joints. I had purchased some tubes to replace the originals, but it turned out the original Sylvania's were still in perfect shape. The amp tech even stated he has never tested a more closely matched set of 6L6's. Truely, the guys that put the Enforcer together were passionate about their product.
FYI - now I know why I dragged my Enforcer along all these years....it sounds amazing, again.