I like mine. I pinned and soldered a round rod on the front sight. Sights are fast, easy to use, and a bit crude or coarse for fine work. I use a red dot on a B fast mount when I want to check ammo or something from the bench. Offhand I shoot about the same size groups with the one hole and the red dot. I thought my shooting limitation was sighting, but have found it to be grip and recoil related flinching. The one hole is quicker to find and align. And yes, I am dealing with older eyes.