Alright, slow down. Ton of questions in that paragraph. Lol.
I've heard good things about the 24/7, however I've never shot one so I'm not commenting on that. If you can fire your woman's Glock, then do so. See how it is and see if you like it. I'm not getting into the caliber debate because of so many different opinions. 9mm is good for some people and .40 is for others. I recommend shooting both (renting) and seeing what you like. What else ya got?