Stock fit changes as we get older and/or lose/gain weight. My bout with Covid two years ago resulted in my losing almost 20 lbs. nothing fit, from guns to clothes. My gunsmith told me as he fit an adjustable comb to my MX8, that for every five pounds we gain or lose comb height can change 1/16”. He does stock work mostly for trap shooters and I believe he’s right. I have gained some weight back but not in my face. Consequently, I shoot a high gun at 13/8” x 2” x 15”. Prior to this I’d get by with 11/2” at the nose.