If you notice I just said "long" in my second post
Yeah, but you know how we work here. Never pass up an opportunity to bust on somebody.
As for the grip sizes, the small grip size might well fit your wife better. The grip module assembly can be found under "accessories" and then "parts." Or just click this handy link.
They change out in all of about a minute.
I have never tried their short trigger, so I can't say squat about it. You can call them and ask about it. It can be found here.