i think there's a lot at play. i KNOW i don't swing that hard, but i also don't get the luxury to hit anything harder than a gold dot, and even that's fairly rare. i also don't play when it's cold.
when guys say a bat breaks in in 500 swings, it means i can't break one in and i might as well buy one used with 1000 swings on it(ie the juggy). my cartel with 200 feels REALLY stiff and is either the worst bat demarini's release recently or it's not even close to being broken in.
i've pretty much stopped paying attention to what others are reporting. i'm either going to get a bat with a defect that will break inside of 100 swings, or i'm not going to break it, probably ever. in my life i broke one bat, it was an asa z1000, and it lasted exactly 12 swings. i've had ultras, jak'd, geezer, mm gear's with tons of hits and couldn't break any of them, so i'm not too worried about nsa and asa bats