Keep in mind, feed problems are not always the ammo. It may be mag related. I recommend Wilson Combat mags. My TRP Operator .45 acp eats any kind of ammo I have fed it so far.
I like it. Kinda stiff at 1st like most leather holsters. Once it forms to the gun better it is quite comfortable. Forget I’m wearing it from time to time.
Depends on the destination. Around the house. No need for extra mags. The shotgun is close by. Around town, maybe an extra mag. Everywhere else, 2 extra mags.