Edge finished the W-413 and W-414 brackets for left wing. Match reamed W-414 bracket to rear wing spar. Countersunk holes in W-413B plate. Then had a brain fade and c/s the 413C angle—ON THE WRONG END! Next, I countersunk the proper end. So, this little angle has a c/s on each end. Don’t think it will be a problem-however setting the c/s rivet on the end next to the upper skin might cause some heartburn.