CDI does some good bottom metal for aics mags. They installed mine and were able to grind down the pillars while doing it. Might be worth looking at them.
Thanks for the info. Nice to know what options are out there. I'm testing out this LGS, so I'm a little tentative to throw too much at him. My old gunsmith is retiring, well, trying to. I might get one more rifle out of him, but he's such a gentleman that I'm doing my best to respect his desires.
