I would say resin and chopstrand on the bottom of the deck. On Fuggly I tabbed it in and laid up I think 2 layers of 1708, (one would be plenty) then 2 OZ CSM over that. I drilled holes both to pour and to vent for the foam. I raise the bow up, and drill the fill hole (larger) toward the stern. I drill vent holes, (smaller) further forward. When you pour in the foam it is almost like water and runs to the back. So (per my theory) the foam expands from the back to the bow, which helps eliminate voids. I usually have a series of vent holes from front to back, as foam comes out I put duct tape over them, forcing the foam to move forward to the next vents. As chevy says, clean up is easy as long as you let if fire off. Don't try to clean up anything while it is still wet.....just makes the mess bigger. Biggest key with the foam is make sure it has a vent. I use 3/8" vent holes and you can hear the air coming out!
