I was visiting some family and was without my standard allotment of firearms. We decided to go to the range, and to my pleasure I found that the rental options available there included a P30L TDA and a Glock 17 Gen 5. They also had a full size Px4 9mm.
Since the P30 seems to be well loved by people here (though it seems mostly with the LEM) and I recall having a very favorable impression of a G19 Gen 4 that I tried recently, I wanted to see how either one would compare in a friendly slow(er) fire match. I didn't have a Beretta APX to compare against (which is my current "favorite"), but I do shoot the Px4 quite often.
A long time ago I recalled being appalled by the HK DA trigger, but I had never been able to fire one. I figured that maybe my experiences at the counter wouldn't necessarily hold true on the range. Also, keep in mind that I'm not at all as experienced or capable a shooter as the rest of you. :-)
Anyways, I shot about 50 - 60 rounds from each platform to see how they compared with some simple one handed shooting. Due to a shoulder injury at the moment, I couldn't shoot two handed, so all of this was tested as SHO, and all slow fire give or take at a 7 - 10 yard target for 10 shot groups.
The P30 did not impress me at all. The grip felt good enough, but didn't sit in my hand while firing nearly as well as I thought it might. The "hump" tended to poke my palm more than I expected. The DA trigger was without a doubt the worst feature. I call it my literal "nightmare" trigger, because it is exactly like those triggers in my nightmare where I am pulling the trigger all the way to the rear of the gun but nothing happens. My shooting buddy tried it out as well as the first attempt to fire DA he didn't even get the shot off. Instead, he pulled through, and then had a massive dip/jerk about 200ms after he thought that he had pulled through the trigger, but nothing happened. Once the shock wore off, he was able to pull through the trigger much better.
While dry firing, I thought the SA on the P30 was fine enough, and I didn't think I would have much trouble shooting it. I kept them inside the black, as it were, but it was a lot more difficult than I expected. The trigger is textured, and that was causing me some real grief. Moreover, for some reason the break on the trigger and the overall feel were really strange, and it was very difficult to smoothly pull through the trigger or do any other trigger technique I'm familiar with. I had to really focus to get the gun to shoot where I wanted it to shoot.
Overall, the P30 was the hardest to shoot well for me between the three by a large margin. My buddy also remarked on the difficulty of shooting it well.
The G17 was another story. I think Glock's have been getting better and better recently, and the Gen. 5's seems nice. The grip texture was good, and I was surprised by the trigger as well. I was able to get a nice trigger pull on this gun and was getting nice, consistent groups. Unfortunately, I also found that the grip, much to my surprise, was more lively and slippery than I expected given the texturing. Basically, the grip would have a tendency to rotate and flip around a bit while I was firing, more so than the P30 or the Px4. The grip just doesn't sit well in my hand, and I think I had less purchase on it compared to the others. Even with that being the case, I still shot it much better than the P30.
All that said, both my buddy and I still favored the Px4 strongly over the others. While I doubt he's going to give up his PPQ .40 S&W for it, he remarked on how nice it felt under recoil and how soft shooting it was compared to the P30 or the Glock. He also remarked on how easy it was to track the gun under recoil for a follow-up shot. For me, I was surprised at how planted the gun felt compared to the P30 and the Glock, given the relatively slick texturing on the Px4 compared to the others. Since I don't have the others to compare against when I am at home, I usually tend to think of the Px4 as relatively slippery (compared to my APX, for instance). But when I compared it side by side with the P30 and the Glock, it was the one that slipped around the least in my hand with the least amount of grip strength applied to the gun.
On the Px4, the DA trigger and SA trigger were significantly easier to use and shoot well than the P30. While I have more trigger time on the Px4, I feel that I can say this objectively for a few specific reasons. The texturing on the P30 trigger made getting a smooth DA pull difficult, and exacerbated issues with trigger pull in SA. The wider, smoother trigger of the Px4, together with a much more consistent break point and a smoother, more rigid trigger pull throughout the travel of the trigger all contribute to making it much easier to shoot, at least for me.
I did find that I was a little more likely to have an "off shot" with the Px4 than the Glock, I also tended to shoot better groups with the Px4 on the whole.
Overall, it continues to amaze me just how different various platforms can feel when you actually shoot them side to side. Oh, and I really dislike the decocker location on the P30L. Just sayin'.