ORIGINAL: Silversurfer
I agree with the method of shutting down an engine by reducing the fuel supply to less than the minimum necessary to run. If te idle is set correctly you should be able to completely shut off the fuel supply. From a personal standpoint I can see no valid reason for loading an engine up with as much fuel as possible in order to flood the engine.
The thought of having (even if it did indeed occur) a bunch of loose carbon deposits that had been disturbed by the flooding/shut down process floating around the top and bottom end the next time it started bothers me greatly.
Now Pat,,,, I always use the choke to kill my engine. As for the MVVS suggestion, I can't see how that would or could do any damage. In fact Pat (Silversurfer) hates chokes activated by servos. The first 2 or 3 times he flew my plane he actually missed the rate switch and killed my engine leading to dead sticks. He's good at landing with the engine dead