I've tossed around trying a new off-duty pistol with the 43X being one of the considerations. However, I've been carrying the G26.4 for quite a few years now without issue. I'm starting to lean towards simply staying with a proven platform that I'm proficient with. Perhaps adding a TLR-6 (which I've got a thread going at the moment to see other opinions). I'd have to change holsters but not that big of a deal.
Anyway, thought it was an interesting video from Sootch and thought I'd pop it up for discussion. I do agree that the ability to use Glock 19, 17 or 19X magazines is an attractive option, to me, with the G26. I also have a couple of Sub 2K's that use G17 mags so it's nice to have that as a compatible option.
The 43X is of course slimmer, but really not all that much compared to other slim pistols. I really haven't had an issue with IWB carry. However, that is going to differ from person to person.
Just some thoughts to toss out and around.
I'll make this a poll as well. If you'd like to vote that's great. If you'd like to chime in on why that would also be great. Let's try to keep this to the two Glock models in the OP and keeping in mind that not everyone has the same needs or physical dimensions.