I'm no expert, but I am going through the same thing with my daughter. She has had difficulty with most of the "standard" size 9mm's. Working the slides was a challenge for her. Firing them she liked the larger size Sig, and I suspect it was less recoil in the heavier firearm. I bought an SP 101 in .22, and the trigger pulls were off the scale literally. It's at the smiths, and hopefully enough reduction can be reduced to the point reliability and fun are maintained. I just looked at Smith and Wesson model 60 3 inch, out of the pro shop, and it was nice size, and the action was quite nice. Stay away from magnum loads and it would be worth a look. Make sure to bring her with you for her input. Good luck!