Hey, I am considering this amp as a possible purchase, but I have read on harmony-central that MANY people have had several different serious issues with it. I have heard that Mesa has worked out the kinks, but that doesn't help the older LS's. Any idea WHEN they fixed the problems (what year model)? I was looking into buying a used one to save money, but if there are issues with reliability, I'm not sure it's worth it. For that money, it should work quite smoothly. And for those of you who have one, have you had any of these problems with your LS? Perhaps the Special is a better choice...