Boy :bow: , am I glad I installed the Venom failsafe on my gas car! Took it out to play a little and fired it up, sat it down and warmed up a bit, then away I went. About 50 Yards away it was cooking and all of a sudden slamed on the brakes. Humm, what's up? Went to investigate and saw the failsafe blinking, indicating it was active. Shut everything down and back to truck. Upon investigation I found I had a broken cyrstal. Well, the failsafe worked and saved me a bunch of aggrivation. I will be putting one on all my gas R/Cs ASAP.