I received my Godzilla premium a couple of weeks ago. It's a great game. Today 4 of us played for three hours straight and it seemed like toward the end the flippers were not as strong. Wondering if anyone has had any experience with flipper cooling units and who you would recommend. Second question, I was thinking about upgrading the speakers. I've seen kits. Some just replace the existing speakers, and some replace the speakers and add a amplifier. Any recommendations? Just an afterthought. Would a flipper cooling kit and an added amplifier need to be plugged into the same power supply connector? That would be a problem.