My 4595 ran all brass cased ammo & Silver Bear zinc plated just fine but wouldn't feed steel cased Wolf reliably.
Issue was with the mags, even after some break in and dry lube the steel cased ammo would occasional stick and not feed properly.
So I took one of my mags and swapped the spring with a 10 round 1911 spring. Had to bend it a bit to fit in the follower, and the 1911 spring is wider so it wasn't fitting inside the follower like the stock spring, but it took 8 rounds with room for half of another round so a little modification of the follower would probably get me back to 9, haven't done that yet. But now it's 100% reliable with Wolf steel cased ammo.
Another option would be to add the 1911 mag catch and run 1911 mags. I've never had any issues running Wolf Steel thru my 1911s with Colt, Wilson Combat or Chip McCormick mags. Someone on the High Point firearms forum is making the modified mag catch.