ugh, an oversight. ....UGH.....
so, Kyler M just pointed out that the stihl 360 has a very small flywheel side seal pocket. its tiny. so its not possible to have a single sleeve to work on this particular model and all the other stihl and husky saws. i'll work on it and keep everyone up to date.
the tool as is should work fine on 346xp, 359, 372, 394/5, 3120, 262xp, 288.... stihl 660 880. it certainly will be adaptable to others without much trouble.