I installed that kit on a P-07 and a P-09. They both turned out very well, along with the polishing in this thread
http://www.czfirearms.us/index.php?topic=66147.0. You can start out with just the polishing, tuning in that thread and then decide if you want to go farther. If you install the parts in the kit and want to go even farther you can start playing with lighter, hammer, recoil springs, depending on what you're after. It made a tremendous difference from the stock pistol, they feel like a totally different firearm, for the better, I think.
