Oh. It looked like you were saying you'd installed Big Dot on your two Glocks. Yeah, the rear sight is really what makes the difference. Completely different sight picture. Plus you're actually covering your point of impact, which would seem really weird to me. Don't know, never tried them.

Ordered the HDs! Paid extra to get them quick. Can't wait to get them installed and run a couple hundred rounds under them! My stock sights have me shooting about two inches high at 15 yds right now, due to an accidental drop on a hard surface. Squashed the front sight a bit, but just enough to raise the shot group. Still embarrassed about it.

Still interested in any comments on the Big Dots, as my wife, daughter and mother all shoot Glocks as well, and ill eventually be looking to upgrade their stock sights too.