That's the thing Kenny! I am petrified that during the process, I may unravel that sear cage / decocker mechanism. I mean, how idiot-novice proof is it that such person does not inadvertently start messing around with it?
I just stripped and polished and installed what amounted to a CGW pro package kit in my CZ97 BD, after sending my SP01 and PCR to CGW for them to work on because I too was intimidated by the prospect of the decocker sear cage, etc. I decided it was time to learn how to do it myself however. It was really very easy (and I'm not exactly a handy guy). There are a ton of great YouTube videos out there (the best one for sear cages is by this fourm's very own Earl An - I'll post a link below to that and others). It was so easy I've taken apart the CZ97 2 more times to tweak things without resorting to tutorials or experiencing any anxiety :-) Just this weekend I stripped my P01 so I can start polishing its internals in prep for a pro package install. Once you get the hang of it it's really a fun/enjoyable experience with only a bit of frustration and head scratching/problem solving along the way. Just need some patience and basic tools (punches, hammer, needle nose pliers, tweezers, etc.). And really, if you break anything you can always get a replacement part from CGW or CZ Custom or Numirch's. And the folks at CGW are very helpful via email if you run into any issues. One great tip I don't have a link handy for is to use a needle nose pliers to re-insert the trigger return spring while working in the trigger pin (instead of using a slave pin - its very easy and fast). Oh, tip #2 get some micro mesh sanding and polishing pads and boards from Amazon. They're great! And check out the smoothing the action thread on the gunsmithing forums here.
Earl An's sear cage video:
https://www.youtube.com/watch?v=4vamXokwoWgApex trigger CZ75 videos (not just for trigger but good info on stripping and assembling lower and upper):
https://www.youtube.com/watch?v=QmGxiGne3EkWork the Trigger has some good vids on the process:
https://www.youtube.com/watch?v=Res51Oy5pqg&list=PLCtniVQYR5PdZr5Ehejc777XieqeTyLzQAbyss1232 also has great vids - here's the first of a series:
https://www.youtube.com/watch?v=aHZrRHOGmZo