My wife has finally shown an interest in shooting. She has had a basic shooting lesson and I have taken her to the range a few times. I have various Glocks (17, 19, 23, and 21SF) but she has not been able to rack the slide on any of these. I have shown her the various methods you will find on youtube showing the "push" method, etc. but she can't get the slide to budge. She is very petite and has a poor grip. Do any of you guys have any suggestions for a semi that she can handle?