I agree. It would make some of their material sound a lot fuller. I think I read somewhere that Glenn says that some of their studio work regarding their guitars cannot be replicated because there would have to be 6 guitars (?) on stage. If anyone knows the interview I'm talking about, or the reference, please post here. I forgot where I found it.
Hellrider, there will be other interviews and chances for you to call and ask them questions, I hope. Look around online.