So I've been shooting for quite a while, mainly an Gen 4 19. I shoot better without any of the grip back straps but I always get the little cuts on the top of my hand from the bottom of the slide. After continuous shooting it hurts like a son of a B****. I've tried the back straps both the factory and aftermarket ones and I don't like how the change the length of pull, but they prevent the bite from the slide. Other than completely changing my grip, trust me I've tried, is there mods rather permanent or temporary that I can do? Does modding undercuts on the frame by the trigger guard help? Or grip reduction on the back of the frame relativity were the back straps would go help? I know that the big Glock modding companies like Agency Arms do such work but is it worth it and could something like that solve my problem?