There you go, blaming the phone...I think the iPhone lied for me.
To the OP:
I have and carry a Gen3 G26 everyday (except some days in the winter, I take the G30). First thing I did was put the Pearce +2 extensions on all the magazines. I love it! Shoot it a lot. Carry it all the time. When I started to get into IDPA, I got G17 magazines for it, each one with X-Grip mag sleeve, and I have since converted to carrying the '26 with '17 mags in it EDC. I use OWB holster, buy the way.
If I was you, I would go with the '19 (being as the choices are only the '19 or the '17). You can still use '17 mags in it if you wanted to
Hope that helps.