Positioned the rear canopy on the fuselage and marked the line where the skin curves around. Took the canopy off and used 3/4" electrical tape to follow that line. The outboard edge of the tape is where the cut needs to be for the excess canopy . Cut off the excess canopy all the way around. This is the longest canopy cut to make... Placed the canopy back on the fuselage. Everything looks good except the right side near the roll bar. The skin sticks out from the canopy glass about 1/8" for about 8". Not sure what I'm going to do about that...