Hi Dave ,mine is a giant stinger,I used a soldering gun then used 14 ga copper electrical wire as a cutter,my gun is 140 watts so when hot had to cut fast or would melt more foam than I wanted removed,mine now is at 17.25# with g62,even though I fly other planes the Stinger is a blast to fly,then land and take off better than some trainers I've seen. Hope you get as much pleasure from yours as I have.