Many kits come with CA type hinges. I personaly have never used them as I think there is a better way. I make my own hinges using fabric covering which give me a gapless hinge which is very easy to install and is strong.

To make these hinges take two strips of fabric covering about an inch wide (or to your preference) and then sew them together back to back with the sticky side out. Now all you have to do is iron them on and then cover over the top of them with ultracote color of your choice.