I'm not a Sig guy unless you are talking their 1911s. I've tried other Sigs and they just didn't work for me as well as other guns. Plus, I was thinking that the P227 was a full size .45. The thing that keeps me coming back to these G30sf's are the 31oz carry weight with 10+1 rounds of .45 in a very shootable platform. The 30sf is smaller than a G19 in some dimensions no less. My son has a Sig P320 that's quite a bit larger, yet still has a 10+1 capacity. I used to have a CZ 97B that was a great shooter, but sucked for carry due to the size. That was 10+1 too. It's tough finding a gun with this capacity in .45. Plus, it's a Glock, so even with two of them now, I'm still under the per gun cost of most of my 1911s.