I can't call it a review because I haven't the patience to measure each group I shot. Anyway, I fit the kit to my 75B in about 15 minutes using an old file. I think I grounded off a bit too much because it is very easy to slide the kit onto the frame.
At the 50 yard outdoor range, I used my current favorite ammo--Federal bulk pack($11 per 600 at Walmart). It is much cleaner than the Remington bulk packs.
Reliability-The first magazine had a couple of failures to feed, the rounds didn't even go onto the ramp. The second round failed to eject, and there were 4 failure to fire(pulling the trigger again solved the FTF thing). However, after several magazines, the gun has become 100% reliable. I have to confess that I didn't really clean the kit thoroughly aside from an external wipedown.
Accuracy-At 25 yards, from a supported position, I grouped the 5 shots into 1.5" groups. Unsupported, 4" groups are the norm. Being ambitious, I moved the target to 50 yards. The shots scattered all over the target using an unsupported stance. Maybe I need to use some match quality ammo?? I could get recognizable groups with my 75B and HK USP 40. So my marksmanship isn't the problem here.
Ergonomics-very natural feeling grip shape, duh, just like my CZ 75B 9mm. But single-handed firing tires my arm easily-it is very front-heavy. I think the Kadet pistol weighs more than the 9mm pistol. Anyone weighed them side by side?
Final impression-I need to stock up on 22LR ammo. I used up 600 rounds during this first session with my Kadet.
Finally, I should report that I ordered my kit from J&G Sales and it arrived withing a week with the extra magazine I ordered. So I will recommend them over the CZ Connection shop(where I spent over 40 days waiting for my 75B).