Has anyone here ever had the stock mag release on these fine weapons wear down enough to cause any problems? Or are they self lubricating enough to have no worries? I have always just pushed in the release and let the mag drop. I was reading somewhere that i should press up on loaded mags so i don't cause undo wear on the release. I've only been running Glocks since 2008 so not a high use rate yet on mine but the releases appear like new to me when checked at last cleaning. Just have normal scuff marks on the mags- no different from first use of them.