Clecoed the flap brace to the wing, then held the flap in position against the brace to check its alignment with the aileron. As many other QB builders have previously discovered, the flap is about 5/16" too far aft, i.e., there's not enough flap hinge material available to obtain the proper edge distance when you drill the attach holes. I have read several builders' logs that say they ended up using half of an AN257-P4 hinge (with a wider flange) instead of the stock -P3 hinge. I will research this and decide what to do. (Another option, of course, is to ignore the misalignment of the flap and aileron.)
Here's the insufficient edge distance when I line up the trailing edges and use the stock hinge.
