Quark/Neu brake lock-up

Well Brian, you are an excellent diagnostician. I got the lectrics back in the 8ight-T again with a Nmh reciever pack and the brakes worked without locking up or causing the quark to reboot. They are still capable of locking up but now have some "feel" tuned in @ about 50% on the radio. Unfortuneately, my UBEC is already mounted in the best ventalated area of the truck(atop the center diff.) and I certainly don't want to install a fan, as I've been avoiding fans from the time I started this brushless adventure. It worked perfectly with my last set-up but was in the truck when my original 125b went up in smoke so I'm thinking maybe it was damaged when that occured. I may try the Castle BEC or just run the reciever pack till I get a MGM, MMM, or R1MT with a built in "switcher". Anyway, thanx again for the diag.