I usually use a choke servo. I've got 9 pieces of titanium in my lower back and I don't like bending over to fiddle with the choke rod anymore. It's not too hard to run a 2/56 nyrod up to the choke lever and put it on a switch on the TX. I usually brace the rod up every 4" to 6" inside the fuse. The 2/56 nyrod is cheap, but it takes a lot of torque to move a choke lever and the rods will flex if you don't brace them up. Works good to kill the engine in an emergency. Most of the time, I use it to kill the engine after taxiing back to the pits. Then reach over and turn the ignition switch off.

I used to use graphite on the throttle cable because people told me the nyrods contract and expand in the heat. I haven't noticed it enough for it to be a problem. Again, 2/56 nyrods are cheap and light. It just takes 3 or 4 small lite-ply braces to keep it from flexing.