Defnitely look at any the pistols where CZC adds their accubushing. You should find this of interest:
https://www.bullseyeforum.net/t11883-cz-p-09-ransom-rest-results
It's not a S2, nor does it have CGW 10X bushing but the accuracy potential is quite good with CZ pistols. I recently bought a TSO in 9mm and am developing loads wanting to be well under 3" at 50 yards. I completely understand the desire for extreme accuracy after having a properly built 1911, Chambers Custom does all my 1911 work...