I'm just a simpleton, wet layup. FYI, they eat up about a quart of resin to get them this thick with multi layers of fabric, but now I want to add some more glass at the mounting points. Next time I will add during layup, as I know now where to build it up. 4 layers on the sides, 5 on the bottom. First was some probably 4oz cloth, then 2 layers 17oz biax, then some roving that has chop on one side, then one final layer of roving down the middle. I kind of used the last of what I had here, other than a box of scraps.