ORIGINAL: littlera
I will ALWAYS use an optical kill switch on any gas engine. The electronic ignition affords a measure of safety not available with glow. In the case of loss of signal, even momentary, will kill the engine. You can kill it from the Tx too, in case of any linkage or servo failure. Not expensive, and affords great peace of mind for me.
I don't want a momentary loss of signal to kill my engine. What if I get control back and the model is too far downwind to glide back to the field? I would rather that the fail safe reduce the engine RPM to low idle.
CR