I've read in other posts that alkaline batteries don't discharge like ni-cads and that's the reason failsafes don't respond in time. I learned from experience that AA's only work for a few tanks then it's time for a change. My tmaxx has had a couple runaways and since I've changed over to rechargable batteries, the failsafe has worked perfect! A throttle return spring is well worth it.....when electrical fails...mechanical is there to save you!!!

Sorry for your runaway Odium.......Isn't that just about the worst feeling in the world?[sm=drowning.gif]