I have managed to hook up alot of servos and I find that the voltage regulator overheats and the servos will no longer hold their respective positions. If I shut them down for a few minutes then everythig is fine again. I plan on making a large heat sink but I am wondering if that will be enough. Would a fan be a good idea? Has anyone done this and what kind of area should I go for on the heat sink? Any advise would be appreciated.