I have not tried these in NEARLY enough pistols to be sure, but there has been a general rule in my experience: When Hydra-Shoks don't feed, try the Speer Gold Dots. Remington GS and Speer GD seem to feed in virtually anything.
I would go back a try a few things again after @500 more rounds through the gun. Sometimes loads that didn't work on a brand new pistol do fine later. I am not sure exactly why, but there are several possibilities. I have never had much luck with Hydra-Shoks in any CZ, but I only tried during the first session or so.