Let's start over.
Field strip the gun and look it over for rub marks, scores in the metal, dents, raised surfaces or unfinished surfaces. Look at your recoil assembly for smooth movement. Are there any hesitations in the movement when you cycle the gun by hand?
Lubricate the whole thing lightly, then put a bit of a decent gun grease where things move and touch. Don't forget a drop of oil on the disconnector.
Reassemble the pistol and work the slide back and forth. Does the slide go all the way back without stalling as it starts to cock the hammer? Is there any other spot in the slide movement that catches or hesitates?
Examine your magazines. Use a cloth covered or plastic tool to depress the followers. Work them up and down.
Do the followers stick at any place during their movement? Are the cartridge lips smooth, not sharp? Anything deformed? Could they use lubricant? A dry lube might be better here than grease or oil. Test each magazine by fully inserting it into the empty pistol with a closed slide. Retract the slide to see if the slide catch will retain the slide against recoil spring pressure. Put a cloth or other cushion between the end of the barrel and the slide face. Depress the slide release and allow the slide to spring forward against the cushion.
Were the movements of the release and the slide smooth?
Remove the slide again.
Push an empty cartridge case up under the extractor. The extractor should hold the cartridge against the face of the slide. You should be able to move it against spring pressure. Does it snap back into position when you release pressure on it?
Examine the ejector. Is it worn? Deformed? Loose? Does it ride smoothly within it's groove in the slide? Does it extend beyond the face of the slide when the slide is fully retracted? Are the extractor AND the ejector lubricated?
Reassemble your generously lubricated pistol.
Dummy rounds are best for a function check. Lacking that, you may put single empty cases into the chamber and close the slide over them; then pull back the slide slowly to see the empty cartridge case. It should be held against the slide by the extractor until it encounters the ejector, when it should pivot out of the extractor's grasp.
Put another dummy (or empty) into the chamber, close the slide, and pull it back smartly.
The cartridge case should pop out of the extractor's grasp and clear the pistol.
With dummy cartridges, load each magazine with one dummy. Insert that magazine into the pistol with the slide closed. Pull back on the slide and let it fly forward. If the dummy loads into the chamber, repeat the slow and then rapid retraction of the side.
Try that with increasing numbers of dummies in the magazine to insure all will feed, extract and eject.
If you have not had a failure of the cartridge/dummy to clear the ejection port, you are ready for live fire.
Load each magazine with one round into your pistol. Either release the slide using the slide stop or retract and release the slide. Fire the round, then see if the case has remained in the chamber (or been re-chambered), jammed in the ejection port, or successfully ejected, leaving the slide locked back by the action of the magazine follower on the slide stop. Do this with each of your magazines, keeping them segregated by the way they interact with your pistol.
If all is well, load your magazines with two rounds each and perform the above test, observing the results of each empty case.
Then load three, etc. until you have fired all your magazines with a full load.
Do you or your wife carry the gun fully loaded: loaded chamber and full magazine? If so, perform that firing with each of the magazines.
The results of this test will demonstrate to you the reliability of your gun and individual magazines with the ammunition you are testing. The added firing will help "wear" the gun in, promoting better fitting between parts and enhancing performance.
I'd start with a good full metal jacket load and wait until the above testing was completed before moving on to ammunition I intended to carry in it.
Marking your magazines for identification with nail polish or other removable method will help you keep easier records.
I expect by this time your gun has begun to run smoothly, and the last four magazines should have fed, fired, extracted and ejected perfectly. If it performed differently, tell us what you've seen, and we'll go forward.