Actually the longer slide or barrel is easily concealed compared to the large grip. Especially with the extended 20 round magazine. Did you not get a 20 round mag? I think the 1" longer barrel is a little bit much. It would be nice for ports or a compact compensator though.
The lighter slide might work better in competition or dual gun action. I wonder if they changed the recoil spring weight . How much shorter is the recoil spring compared to the 92.
I did receive the 20 round mag, I keep it in my range box, it shoots in the 92 and 917. The recoil spring is about an inch or so shorter in the 917, because the slide is shorter than the 92 by that much. I was thinking about what porting the barrel in this config would do. Would it reduce muzzle climb for better follow up shots? Might be good for competetion for that reason alone.