I used the hinges ( CA) that were supplied in the kit...so far so good,but my honest opinion, if I were to build another one,I would use Robart hinge points (Large)..hope this makes up your mind....BTW, I didn't use the 'L" shaped metal mounting plates on the cowl, to mount the cowl..I made some maple wooden ones, one on each side,and one on top..used Dubro brass inserts, and nylon 8-32 screws .............The reason why I did this was because I had to remove most of the 1/8" ply support from top and bottom of the cowl, in order to make it fit..this was the biggest problem I had in putting this plane together.Good luck with yours