I didnt put a servo on my choke because of the extra weight. As you mentioned though, its great to turn off the engine with. Also, if my throttle servo goes bad I will have to fly the plane until it runs out of gas, which could take a while. Thats the price you pay I guess.

I have been thinking about picking up a mini servo to do the job but after spending $800 on eight servos recently, I am all servoed out for the time being.