A friend of mine told me about this thread. Here's my story on GMS. I own 5of them. (2X) .46s and (1) .25 and (2) .32s. My friend owned several also. Mine ran flawlessly and would not die at idle. Never saw the not dying at idle to be a problem. Most of his had problems either at idle or would lean out in flight. One day he asked me to see how many turns in my idle screw was on a .46 that ran perfect. I checked and it was 1.5 turns out from bottom. Just curious I checked another. It was also 1.5 turns out. Than I had to check them all. What would you know!!!!!!!!! All my GMS engines are exactly 1.5 turns out from bottom on the idle screw. This was never by purpose. I had adjusted over the years just to make them run. Never had I counted the turns until this time. He set his at 1.5 turns on the idle and 3 out on the HS. Runs just like all of mine now. Flawless!