Have you fired it enough to break it in?
Polishing the feed ramp helps too.
Does she find it easier to cycle now?
You can always enhance the grips on the slide, if grip is the issue.
If you can't do any finish work yourself or know someone who will, keltec will do it.
A heavier gun will alwys be easier for her to fire, if control is the issue.
She might find the longer mag useful.
For a failure to feed issue, the powerball is pretty much failsafe, from what I've seen.
I've thought of at least using them at the top of a magazine.
My friend carries those for that reason.
I have been unable to jam them.
My friend has quit carrying his 380 since the incident protecting three children from those dogs attacking.
He had difficulty sighting and is concerned about capacity too.
He carries it on dress occasions now.
He relieved around the sights and built them up with metal.
I think a laser is a great fit for this gun too.
He actually did pretty well for the target and distance.
If she needs more weight, there are a lot of options.
The Rohrbaugh is pricey, but they make a 380 version of their 9mm that would be more stable, as the weight is higher.
There are others.
I might suggest not going below a 380 or 32, if you can avoid it.
You could use light powder loads rather than going to a smaller calibre.
I nearly bought a makarov once, hungarian.
Heavy by modern standards, but very well made, about $150 then.
Blowback, of course.
If I can get him on the milling machine, we could cut your slide for you.
I plan on doing my 9mm.
My 380 is very easy to use now, but I might cut it too.
For yourself, don't forget Taurus.
I would lean to 357 Sig over 40 myself, unless I go larger.
I want a 10mm.
We were talking about his P40 Keltec.
The PF9 is slimmer, but the P11 has so much capacity versatility.
Mine is sitting here now with the 12 round in place and the backup mag a 20.
So 10, 12, 15, 20 and 22, in Mecgar or smith and wesson mags.
The PF9 has an easier pull, as it uses a variation of the 380 half cock.
I worked on my side clip for the 380 and mounted it.
It feels a little low on the side for me, but once you mount the steel pin, you can easily take it off or remount it with a wrench.
They have them for either side.
Keep trying different guns and techniques with your wife.
I could barely pull the slide on my P11 when I got it.
Part of that is practice.
Sometimes my joints hurt if I twist my hand a certain way, no strength at certain angles.
That's a good reason for an enhanced slide.
It's standard on more costly guns, and military use.
If you have to do a reload or teardown after being injured, it may not be such a luxury.
I probably mentioned the wife that nailed the attackers from upstairs in a window here, but hadn't learned how to clear a jam.
She saved her husband before it happened, then one ran off.
Amazing shot for her experience and certain adrenaline.