DRILLED REAR SPARS AND RECHECKED SWEEP AND INCIDANCE. WING SWEEP WAS LEFT WING 3/16 " AND RIGHT WING 3/16" RIGHT WING INCIDANCE 0 DEGREES AND LEFT WING 0.1 DEGREES AFTER DRILLING AND INSTALLING THE REAR SPAR BOLTS. I DRILLED WITH A 19/64 " DRILL AND USED A 5/16 REAMER ON THESE FOR THE CLOSE TOLERANCE BOLTS