Reading pressure from what the fired case looks like is like reading tea leaves. If you've shot your pistol a lot, excessive recoil/muzzle flip will tell you somethings not right. Excessively flat primers or extractor damage to the rims helps identify excess pressure.
BTW, I did eyeball the few samples I shot from this last lot. Case walls looked good. Primers had the usual "Glock" rectangular imprint on the primers and were not unusually flat. I only bought 100 of these Hornady's just to get my feet wet. My future range bullets will be cheaper Berry's RN FMJ and loaded to medium low.