Can't get much better than 100% functioning. One of several techniques I use when range testing a pistol is to hold it in my weak hand as loosely as I can and with a 45 degree angle at my elbow. This represents a worst case scenario so if the pistol will run through a full magazine and lock open on the empty mag, I'm a happy camper. All of my pistols including this CCO have passed this test
I'm hot on your heels in the age race, Joe. Recoil is subjective. The CCO has a Commander slide on an aluminum Officer's frame so felt recoil will be greater than if the frame were steel. The trade off is that the aluminum frame is more comfortable to carry.
There are a couple of things you can do to mitigate recoil.
- Fit an oversized, flat bottom firing pin stop (EGW or Harrison)
- Shoot 165gr or 185gr standard pressure JHP. Federal makes Hydra Shok Low Recoil ammo that may be just the ticket for your pistol.
- Experiment with the recoil springs to see if the pistol will run 100% with as light a spring as possible. Factory standard for a Commander is 18lbs but with the flat bottom firing pin stop you may be able to use a 14lb spring. You can reduce the recoil spring weight by increasing the mainspring (hammer spring) weight. Factory standard mainspring is 23lbs. Dropping in a Wolff 25lb spring will have a decided effect on rearward slide velocity.
I'd fit the oversized firing pin stop first. Then I'd shoot a magazine of your choice of 185gr self-defense ammo (slowly, deliberately, weak hand only). Then I'd experiment with the recoil springs to see if this ammo in this pistol with the flat bottom firing pin stop will run 100% with a Wolff 14lb recoil spring. If you discover the slide is coming back too fast, drop in a 25lb mainspring.