I have 2 aimtrack light guns with recoil, win10, mame .201.
no problem calibrating, everything works great
then Bam! in the middle of a game the calibration goes wonky
and just as I typed that I figured out the problem, going to leave this here in case it helps others.
after calibrating the gun in the configuration software, click off enable calibration and apply changes. This will prevent calibration from trying to reoccur when you are holding down the trigger in a game.....