If anyone uses a Glock specific striker spring in their CZ, also use the Glock specific keepers. I think I bought my Wolff brand Glock specific springs from gunsprings.com. Can't remember about the keepers. I have had either the 4 or 4.5 lb Glock specific springs and keepers in my P-10F, C, and S pistols since the pistols were first available. I use them with the CGW 300 strikers. I would think using the CGW spring would be an even better choice, but they weren't available initially and a neighbor loaned me his Glock springs to try and I've stuck with them since. The CZ keepers will come loose if used with the Glock springs on a CGW striker, if I remember correctly. Another reason to go with all CGW parts that are available now.
Note, these are my range guns only, not carry guns. I still carry a P-07 with the decocker installed. I don't want to carry a P-10S with the trigger parts needed to shoot best at 100-200, and I don't want to try shooting at 100-200 with the optimum carry parts installed. But that P-07 is big and bulky!

Joe