TexasCHLforum.com

Rey, your Custom II is all steel as you've already figured out. The aluminum frame gouging issue is a big one that's for sure.

I have a few Kimbers and I've had great success with Novak mags in all of them. They have metal followers but they are not split on the end like the Kimber and McCormick mags. Even in my Ultra CDP II which DOES have an aluminum frame, the followers on the Novak's do not dig into the frame of the gun.
Not only are the Novak's extremely well made and functionally excellent in my experience, they are about $10 LESS than the Wilson 47D's.
The Wilson 47 series mags are very well made also but I have recently begun to notice that on a few of mine that I've been using for IDPA, the plastic followers are starting to show significant wear and are failing to lock the side open after the last round.
The last two matches I used Novak mags and had no issues.

I've paid as little as $12 each for the Novak mags and in my opinion they are as good or better than any other 1911 magazine on the market with the exception of Tripp Research mags which I have not tried and cannot compare.