http://board.marlincrawler.com/index.php?topic=28650.0Been about 3/4 of a year now. As long as you keep the brass bushing they won't get as sloppy (at least as quickly.) I keep my full doors on most of the time and as of yet, no slop. (Making sure the brass sleeve doesn't get lost when swapping can be a pain sometimes.)
I can change the doors out pretty quick too. No tools required.