I ran into a buddy in Boise at a USPSA match, that loves the Gen 5 23 so much, he is thinking of using one as a CO and Limited pistol. Interestingly, he also tried the G5 22, and said he much prefers how the slide tracks on the G5 23.
Up in AK now, I have been carrying both a G5 23 and 19, with the Lehigh Penetrator loads and am conflicted which I prefer. I like the diameter and greater mass of the .40 load, but since I have a Mayhem comp on my 19, I really enjoy how well the 19 shoots. I believe the extra noise of the comp’d 19 might be an advantage with a bear, as more noise should be a good thing in deterring an attack. I also like the ease of holster options with the 19.