Took the FNX out for the first time last night and put 100rds through her. Crazy accurate.
Had a couple of FTE and one time the slide didn't lock back on empty. All 3 were when the wife was shooting, so I'd guess they are grip related. Hoping the extractor loosens up a bit, as it was throwing up and straight back. One round the wife shot actually went forward to the left. All in all, it out-shoots me and is comfortable in my giant hands.
Looks like I'll need to send the Trijicon in though
I have the same problem that I've read about online. It came from the factory VERY high, and I turned it down on the elevation until it started to get tight (manual says stay away from this area), and despite that, it's still shooting 2" high at 7yds, and 5" or so high at 15yds. Not enough travel to get it on target.
That being said, the RDS as a whole is amazing. I'm not half the shooter of most on here, but in quick succession I can make 3" groups at 10yds, and when I bench rested to see if the sight was off or me, I made my first ragged hole with 10 rounds. Good times.