Having been a fan of the CZ75B for a number of years, I decided to get a conversion kit. It just came today. Right out of the box, I fired 30 rounds of CCI Mini Mags, 10 Federal Lightnings, 10 CCI SGB, (small game bullet), and 10 Winchester T22 standard velocity. 2 FTE's with the T22's, all others functioned flawlessly. The kit fit fine without any adjustment and the accuracy at 30 meters is sensational. Both CCI rounds stayed within 1 & 1/4 inches, the Lightnings spread to nearly 2 inches, the T22's grouped lower but not quite as good as the CCI's. No feed problems, no undue fouling either. I will not modify anything yet, but will hone the slide rails with a rotten stone and possibly polish the feed ramp. This kit is well worth the money. PS: 5 shot groups fired from a rest bolted to a corner fence post. First 20 shots(CCI Mini Mags) fired freehand nearly 5 inches. The bifocals did it!