SI doesn't do CZ's. I bought my RMRs from SI but they were not considering doing the RMR slide cut, rear sight cut/installation on CZ pistols. Primary Machine got my money for all that. The response, when I shared pictures of my RMR'd CZ's was something close to, "If we'd have done it, we'd have done it right." I took that to mean they wouldn't do it because they couldn't/wouldn't cut a CZ slide like they cut a Glock slide.
Remember, up to now, SI has been so focused on Glocks that it's very unusual to hear different brands even mentioned. And when they do they will mostly say something like, "Well it's a pretty good pistol, but I'm sticking with my Glock."
They are, however, seemingly interested in the Scorpion (first) and showing a bit of interest in the P10, but not so much yet.
SI does change. They've gone from AK's are it, to AR15's are it. From shotguns won't be considered here to this is the kind of shotgun you need and this is how to use it. Who knows, someday they may be doing work on CZ's. But I think mine are already done (by Primary Machine.)
As far as rear sight placement goes, I never have an issue with where my rear sight is on the P07 or P09. My eye/mind goes for the red dot. I don't even notice the front/rear sight are there unless I force myself to look for them/use them. It was easy for me, I don't know why. I shot iron sights for almost 40 years. No way was I going to pay as much/more for an RMR that my pistol and then pay to have all the work done. Till I did. Then within a couple weeks I had a second one. Best thing I ever did to one of my pistols.
