Short back story, which is somewhat pertinent. Bought an RDO slide from LTT going on two years ago, everything ran great until about November, when I thought perhaps that the front sight was wondering in the dovetail. Other than being annoying because the backup sights weren't lined anywhere close to the dot. Fast forward a few weeks, and my 507c took a massive shit and I sent it back to Holosun. In its absence, I sent my slide back to LTT, and when it came back in January, installed my new dot and off we went. Until today. Noticed the front sight not centered at all, and pulled it by hand out of the gun.
Frankly, I'd be half tempted to just go without it, but having had an optic fail, I don't think that's a great option, either. Just not real excited about having to send the slide off, again, for another month or more.