Completed Root Rib Attach Angles for Left & Right Main Spar. Had no problems getting the inward angle for the two SNX-W20-03 Root Rib Angles, but broke my vise trying to get the outward angle on the two SNX-W-02 Root Rib Angles. Trip to hardware store to invest in a better quality vise and a 2.5 foot steel pipe (cheater bar) fixed this problem.