You're not saying what chambering your are shooting. I do agree that sorting is a good idea with the heavy hitters and 100% case inspection is required. If you only have one pistol in 9mm I wouldn't bother sorting them. Unless you are a first class pistol shot you aren't going to notice the accuracy difference between case brands.
But I can't stress the importance of case inspection enough. Just some things that require discarding a case includes split case mouths, cracks, bulges, enlarged primer pockets and any thing else that looks out of the ordinary. Its not worth taking a chance.