My CZ-75 has a very nice tight sight picture, out beyond 30 yards, it is the easiest to shoot nice groups with.
My Kahr Mk9, is worthless past 30 yards anyway, so the XS Big Dots are awesome on it, allowing extremely quick shots that are adequate for the distances required.
My P99, with its "sloppy" sight picture, is fairly fast, fairly accurate inside 30, but drops off past 30 yards. Especially in right to left shot dispersion, my elevation is consistent, but there is too much slop for accurate right/left.
The reason I'm looking at the XS sights, is because the P99 is my CCW pistol, and realistically even a 30 yard shot would be a less than 1% possibility. And the XS sights are much faster inside 15 than any other sight, and out to 30 would not give up too much to the sloppy Trijicons.
But #### I hate to give up "bragging rights" on those 50 yard 6" plate shots.
For those interested, here is a link.