I mostly stop mine with the Flywheel.
But it is by choice, not for any other reason except for that it is the easiest for me. I do the LSN pinch test for tuning the LSN and have a Dura-Trax exhaust tool.
At the end of a day of racing I idle it on the starter box till all the fuel has been burnt through and run my tank dry. I've never ruined any engine and all have gone over 8-10 gallons with no problems.