I'm currently a resident of CA and the Gen4 isn't on the roster. Gen 3 is.
There's ways I could legally get a G4 but it either involves more hassle than I'm willing to right now or involves paying too much of a premium than I'm willing to pay right now.
I was initially interested in a Gen 3 G26 about 9 yrs ago but the hand fit wasnt good for me and it was intended to be CC IWB so I kept stalling. About 6 months later, I bought the MP9C as soon as I touched it
However, in more recent times, I shoot spmeone elses Gen3 G19 occasionally and considering how little I shoot it, I do pretty well with it.
Because of that and that they're a great gun in general, I've recently been thinking of getting the gen 3 G19. And if I HAD to,,,, I've read about a different trigger that give a shorter reach (not confused with shorter travel) or slight grinding; the smallest amounts can make a big difference from me.
The G19 might fit me better, never compared the G26 side by side, but I think being open in a OWB holster allows me to get a better more consistent grip which apparently I need in order for me to get enough finger tip over and on top of the trigger diggle instead of more into the side of the dingle.