Smoothing the form was a LOT of work. I could have been at it for months, but at some point had to call it good enough. I was using polyester resin (smoothing putty) for automotive work. After cutting out the two vent holes with a jigsaw the form was ready for applying PVA mold release agent. I laid on six layers using a HVLP air gun. The next step was to brush on a single thin coat of epoxy and let it get to the right consistency of finish to lay on the carbon fiber.