Hi Armed Citizen.
Now you mentioned it. I sent my 75b to CZ Custom for a trigger job, too. (that's where I got my Kadet kit) They told me that Kadet required 8.9 lbs for the DA pull for being reliable. (I think it was an ignition issue). They could have made the DA pull being around 8.5 lbs. They also told me that the SA mode (3.75 lbs) would not have any issue with the kit.
Do you know if you may have some issue with the kit just in the DA mode or in both SA/DA modes? Despite that I made the DA pull 8.9lbs for the kit, I never use the Kit in the DA mode. Always I shoot it in the single action. I don't know how you intend to shoot the Kadet kit (DA or SA?). But if you are like me, you would be OK as long as the kit functions reliably in the SA mode. I do suggest you discuss this with your gunsmith.
As CZ04FT said, it is a great kit. It has helped me greatly for improving accuracy (see the link. FYI, 1-8 were within 3-5 meters (close). 9-12 were around 4-5 meters (a bit more distance). 13 to 18 were 5 m +. 10 rounds per target ) and saving money
http://s1067.photobucket.com/albums/u428/Saltriver42/Kadet%20June%204/ I hope you can make Kadet work with your P01. I think it is well worth the money/some discussion with your gunsmith.