Kent's got it right. The only reason to use molds is if you plan to build more than one. That's the only way the extra work pays off.It is massively more work to use molds. First make a plug and finish it to the quality of a finished Long-ez. Then use the plug to make your molds. Then use the molds to make the actual skins. Along the way add foam or honeycomb to the skins in the mold.