[3rdday]

I used Divinycell for deck, stringers bulkheads and Renicell 20LB for the transom and epoyy resin, on my Moesly 21 Classic. I do not regret it, was expensive, but will have a lifetime boat, without a worry, ever! I got the epoxy for $43 gallon, not much more than polyester resin.
As rare as 21's are, I didn't think twice about it.