Work has been busy; getting the flap braces tweaked took several days with little time spent each day. After match-drilling, the braces are countersunk to accept dimples in the skins. This leaves the upper surface of the brace flush to mate with the flap hinge. Taking a cue from Brad Oliver, I drilled a piece of wood to each brace to guide the countersink pilot and then countersunk the holes. Easy!