I reassembled the cowl halves on the airframe to verify they still fit together and properly clear the exhaust stacks. All looks good. The layup of fiberglass cloth was very poor around the exhaust stacks, so I just cut away everything to make a circle approximately 4" in diameter to provide plenty of clearance from the hot exhaust to the fiberglass. One of the reasons I wanted to reassemble the bottom mold with the top cowl was to verify that the exhaust stacks are coming out pretty much in the center of each of those holes. The opening in the bottom cowl mold for the crankshaft opening was very rough, so I put in one of my canned chicken cans to define the hole, and added a fillet of microballoons to hold the can in place and provide a nice bevel when I lay up the final cowl in there.
