hey i don't have time right now to answer all your questions. First of all, I'd like to say that i think you are a great guy, and I'm not trying to put you down. Also, I'm sorry about the misconceptions about the Zapco amp thing. That was my fault. And, I can actually tell the difference between a zapco and the other brands that you mention, but it doesn't seem that other poeple can and....there doesn't seem to be a HUGE difference....but I can definately tell a difference. OF corse, I can't speak for McIntosh because I haven't heard them. Also, I can explain the guitar thing, I'll do it later if ya want me to, just let me know!