I've owned and shot 9mm, 40 S&W, 38s, and 380s but have been thinking seriously about getting a 45 ACP (mostly home defense but also for occasional carry). I have not shot a 45 before but have been looking at either a Glock 30 or M&P compact. i went to my local range yesterday and thought they had both to rent but turns out they only had Glocks (30, 30S, and 36). I am not the most recoil-tolerant shooter so I wanted to see how the 45 shot. With regards to the Glock 30, I'm medium-build with medium hands so I was concerned about getting my hand around it and being able to reach the trigger comfortably. I started with the Glock 30 and found it better than I expected in terms of recoil. It was not a big deal and I shot it accurately enough. I didn't really have any trouble getting my hand around it. I then swapped it out for the 30S and expected to feel a little more recoil but to tell the truth, I couldn't feel any difference. I also shot the 30S well. The only thing I noticed was that my pinky was getting pinched on both guns but it was not a big deal. I have a G26 so the idea that a 30S could fit the same holster is possibly a nice benefit. Didn't shoot the 36. I've been leaning towards the M&P compact (for the smaller grip, manual safety, feel in the hand when handling them at the store, and a few other reasons) so I was bummed they didn't even have a full size M&P to shoot but the experience with the Glock has made me feel more conflicted now. Ten shots of 45 ACP in that package is a pretty nice deal and having commonality between the G26 and G30S would be a nice benefit.