I'd suggest that a second method of shutting the engine down is desireable. Certainly, the throttle should be set up correctly first, allowing low throttle trim shut down.

What happens, tho, when the throttle linkage binds or comes loose? We've all seen it happen in a glow plane, and the pilot roared around at full throttle (or whereever it left off) until the fuel ran out.... Well, a gasser's fuel usually is enough to last alot longer than glow, and how long do you wanna roar around before she quits?

So, a second kill is a good thing, and new to the newbies, thus the questions!

J