25mtr (27.5 yards) single hand, unsupported, using factory ammo. My vertical spread has reduced down to 2" almost consistently if I do my part right. I will post more targets as I shoot this a bit more. Have been shooting rifle almost exclusively for last 3 months.
CZ75 TSX (CTS) with TS slide, SP01 frame, SAO, and CGW Barrel Bushing.
5 Shots. X ring in 1", 10 ring is 2" diameter. This is a 1.75" CTC group. Well, I was shooting quite good with this pistol earlier, but almost never as good as this. The improvement is there for the taking, and the best of shooters would notice accuracy comparable to Sig P210 and X5/X6. Yes, I have access to these pistols, a friend has all three. Previously, it was always a notch below.
I highly recommend this mod. If not for one shot that I pulled left, this would have been just abt 1.2", free hand, single hand ! Not bad at all.