Well, here's the leading edge glued in place and the sheer webs installed, and a pic of trimming them. As far as the leading edge goes, take a straight edge and make sure all ribs are flush with the straight edge, if not sand till they are, I had an issue with R-9, it was long, so I sanded it till it was flush with the rest, plus, this puts a angle bevel on the noses of each rib to make a better glue joint. I tacked the end ribs with a small dab of ca and used wood glue to do the others, went back and put wood glue on the outter ribs just for fun. The sheer webs are straight forward, just don't shove the sheet to the building table, the main spar isn't touching the building table, remember? So take a peek and look at the sides near the ribs, keep them about 1/16" shy from touching the edge of the ribs and make your line across the top spar, cut just on the line and you should have a nice 1/32" space away from top and bottom. Sand it to make a good tight fit on either side and lay it in the hole at an angle and apply wood glue to bottom and top. Flip it into position, press tightly and add a fillet along the ribs front and back. Done! Let it all dry and go watch tv, make diner or play with the kids or pet and come back to it in about 1 hour, I already did the sheet joining back when I set the ribs on the spar so IU can go ahead and get ready to put the top skin in place.