Hi all, I also use a small rubber band between the throttle stick and the bottom of the transmitter to hold it fully closed. My rigs won't run if the throttle is closed. I have two safety backups, large switch to disarm power supply and shut down throttle. Of coure one must still keep his body parts away from a prop's arc.

Treat every prop large or small as if it is alive. I once grabbed the prop of my full size PT-22 to swing it and it kicked back throwing me in a back loop. No damages but very embarrasing. Fortunately the Kinner didn't start. Norm