BTW, on the infrequent occassion that the slot is too loose, which can happen with ARFs that have perfectly straight hinge slots, I usually retrofit the CA hinge. Dubro hinges glued with Hinge Glue work great. Matter of fact, they're as easy to install as CA hinges and are bullet proof. They're also easy to use on the same hinge line with CA hinges. And I often use them as the hinge closest to the surface's control horn, as I trust them far more than I do CA hinges. And I don't distrust CA hinges when they are obviously of decent quality.