Hi all, Thinking about picking up a Portaflex 500 this weekend, and wondered what the general consensus is on the Guitar Center extended warranty. I know there were a few quality concerns with this amp early on, but I'm wondering if the manufacture's warranty would be more than enough. Also, I'm concerned because I really enjoy using a DOD Meatbox. It produces subharmonic frequencies, and I'd hate to damage the amp or cab without any warranty protection. Thanks for taking the time, and btw, that Portaflex thread is gargantuan! Very cool!