I have an original Kadet, not a Kadet 2. I’ve used it on my P-01 without issue, but I have a dedicated 75 compact lower for it now. I’ve not needed to fit it in any way. Since I have old eyes, I hate the factory sights.so I installed a F/O front sight…much better.
it’s been pretty reliable with all SV ammo I’ve used. I shoot a lot of Blazer thru it, and need to give it a good cleaning after a range session because that stuff is pretty waxy.
you can not beat having one for cheap training. If you put it on a compact frame, you can get compact bases for the mags from the CZ web store….and you have perfect flush fit mags.