I haven't shot it yet because I don't have any rings that fit, I had a look at my LGSs and they were far too expensive so I'll get some off optics planet I think.
I have a CZ452 also and I did buy the CZ rings. I had to get pretty tall rings to mount a Weaver K4 to get the objective bell off the rear sight.
I found an EGW tactical scope mount picatinny rail 0 MOA from Optics Planet and took the old scope off and put on a Nikon Monarch 4-14 X50 that I took off an
Works like a champ and now I can take any scope that mounts on a picatinny base and switch scopes out.
I am going to change the CZ rings out on my Weaver K4 and put QD Warne rings on the K4. It will make it easy to switch scopes out.
That is the way I would go.
The CZ dovetail leaves a lot to be desired and a robust picatinny base only has to be mounted once.
The only drawback is you won't be able to use the iron sights with the rail installed.