Robert;
What you're not flying it yet?
?? Just kidding. You have to be the fastest builder I know about. Hey PTG, he's got you beaten!
Seriously, I like the hinging method you have chosen and am interested to know how it turns out. (No pun intended) We (I) used to do a similar hinge on our racing gliders (RC) for minimum drag. I believe it was called a "Knuckle" hinge.
When I glued mine together I used two layers (Next to the hinge) of masking tape for the gap. Any closed and there was a chance of a bind, not good.
Cheers, Jerry