The last time my Redcat Rampage XR truck became a snarling out-of-control land projectile that smashed into a concrete barrier and was totalled, it wasn't because I hadn't a kill-switch installed, but because I couldn't find the third-channel killswitch button on the handle of my FLYSKY FS-GT3B radio fast enough. This button is somewhat recessed, and I, in the throes of anxiety, didn't hit it on first grab. Lol. So, I remedied that by super-gooing a raised button of sorts, that's so easily there for a finger on my left hand on the transmitter handle. The following pictures say it all.