Flinch,
20-lbs is a lot of spring for a government model. Heavy springs work both ways - recoil and return. Every time that slide returns to battery the slide and frame take an extra whack.
I hear you JOG, it doesnt seem to be a problem though, I dont let the slide go unless it has a round to go with it. So far this theory is workin for me. (knock on wood)
