Good so far...
Only have 200 rounds through the weapon after mounting the optic. It appears to hold zero so far. The top of the plate is flat and smooth with no lugs to match the footprint of the optic, this may allow the optic to move/slide after several hundreds of rounds (Time will tell). The fit of the plate to the slide is very tight, No light/gap between the plate/slide/optic. The machining and finish quality is excellent... We'll see how it holds up to the punishment I put it through... DJ
Darrell J.