Can't trust it.. - Sightmark Laser Bore Sights

I was first excited that the 9mm bore site fit my Glock 43x MOS. The one from GGD did not. The extractor prevented the slide from fully closing with the GGD bore site. So when the SightMark fit, I was elated, until I started using it. As others have said, you'll put it in the chamber, and start to dial in your red-dot... take it out, fire a few rounds and way off. Put the SiteMark back in, and it's not even close to where it was. I repeatedly removed and reinserted the SightMark and each time got way different results. It is not trustworthy, especially for something as serious as dialing in where rounds will go from a firearm.

For me, I'm at a loss because I have a short barrel pistol which a.) is going to have a lot of snap to it, even from a bench position, and b.) no bore site to dial in the red-dot.

Theory was excellent, execution on go-to-market fell way short.