Hey Robbie...I highly recommend you make a "hinge template" if you have not already. All hinges on the Sonex are the same type piano hinges, and are all drilled the same at 1" intervals and measured down a certain amount I cant remember (1/4" I think?).
Take an aluminum yardstick, and at each 1" mark measure down the correct amount and drill a #40 hole. Now whenever you go to make a hinge, you just have to lay the yardstick up against the hinge roll, line it up on one end, clamp it, and drill. Your hinge rivets will now all be perfectly spaced and you didn't have to spend more than five minutes doing it!
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