[supercazzola]

I have a gen 4 17, and find it too uncomfortable to use an IWB holster. I looked at the 19 gen 4 today, and it really doesn't seem too different. The problem is, if I want to drop down any smaller in 9mm, I'll most likely have to get the pinky grip mag extension, which makes me question if it is worth going to the sub compact with Glock. I know it may be blasphemous to say in the glock forums, but I'm liking the Kahr PM 9... But still undecided mainly due to its lack of Glock-like features.
When you drop to a 26, you lose the rails too, so no attachments.
I would keep my 17, even if I bought a 19 or 26 gen 4. But I personally find it awkward to carry concealed.

 

[supercazzola]

Buy both!

The big thing is like you said the 17 will be a pain in the ass. At 75' I can still put rounds through the bullseye on my 19. Honestly what I am doing is I have the 19 for carry, the 30 for a back up, and then I'm buying a 34 for competitions. If multiple guns aren't a solution, go with the 19. I say this because I'm assuming self defense is more important than competitions.

I've got the 34 and love it. Not sure why they don't have a gen 4 for that model yet. They are very hush hush about release plans

 

[supercazzola]

@Webphisher: What is not the site?

 

[supercazzola]

well, I just bought a 26 (Gen 4). As mentioned above, I have a 17 (Gen 4). The 19 was too similar to the 17, and the 26 isn't. Like said by many posters, the 26 can always have a larger magazine added to it, the 19 can not be made smaller.
I'll take it to the range and write up a separate thread with my review. Good luck to the OP and their decision