I was going to spring for a new G27 But I went to the safe and compared my G30/36 hybrid - G36 slide on G30 frame - to my G26 The G30/36 was using the 9 round mag with the pierce +0 extension for the G29 The G26 has the 10 round mag with the Pierce +0 extension. Both extensions are basically just the pinkie grip and flat in the back. The slides are visually the same width. The G36 slide is slightly longer, but not enough to make it uncomfortable IWB. The G26 grip is only 1/8" to 1/4" shorter in the back of the frame (NOT significant) and virtually identical in the front of the grip the way I carry. My conclusion is that with a G27 I gain essentially nothing - there is no concealment benefit in the real world (I carry IWB or in a shoulder rig - both fit in the same holsters). There is no ammo benefit - 10 rounds of .40 vs 10 rounds of .45. That one goes to the .45 obviously. The width of the grips is very very close. Again, no significant difference. I also compared the G30/36 to the G19 and G23. The G19/23 have a fatter grip, a longer grip, and the same length slide. I have carried the G19 extensively IWB in the summer time in NYC, and have never been challenged. It carries fine. Fully loaded with 15+1 the weight has to be very close to the G30/36. And the grip is longer. In fact, significantly longer. So I think I have to scratch the G27. I just can't see one advantage over what I have now. Glock needs to make the G30/36 a part of the line. It is a truly concealable .45 Anyone got a different opinion?