Last night Cal Posthuma and I were discussing the situation with the smaller digital servos. We've never had problems with them however, one of our fellow flyers did. He was using a larger battey pack, I think it was a 6 volt, to get more zip out of the contol surfaces and burned out some servos. We have been using the standard 4.8 volt with no problems.
Dennis Hoyle WMSS Treasurer / Sec / Web Geek www.rcsoaring.org