Hello again,
I am also curious which LPA adjustables oldRoger, think-mac and cabezaverde are happy with and how many rounds they have held up to. The roll pin in my CZ85's LPA "Low Profile" broke 3 times and would otherwise loose elevation adjustment from the stresses it recieved from 9mm recoil, not from being dropped or clumsiness. The delicate little thing was just not built to hold up to to 10,000 rounds which is roughly where I'm at with my CZ85. The identical sight on its .22LR conversion unit has worked well but it is not attached to a moving slide.
Incidently I now have the only CZ85 or 75 I've seen with a Bomar sight and it sure looks better with a sight set down into the slide. It's a good thing I plan to take it to the grave with me. I'd never get my money back selling it.
Best Regards,
Gil