Well, I have settled on glues, stringers, shape and dimensions and am ready to make dust but, got a question about the best way to get rocker. I saw a post regarding the use of a rocker table where the foam was weighted(bent) to get the desired rocker. Are there potential problems to be aware of by building tension into the board or is it better to cut the rocker in unstressed foam? I can see the advantages of the table method(accurate control of numbers at the nose/tail, less foam waste). Thanks.
Cut it in. Bending sounds like a disaster.
When you bend it in, you are bending wood. Foam bends easily, but wood does not bend as well. You might also twist the blank in your endeavor. That would be another thing you would have to shape out of the twisted blank too. The foam is stressed from being glued to the stringer.
To give you an idea of what is going on, some blanks from Clark Foam have over 200 rocker templates for one blank. That is bent in and glued up and the wood holds it at that bend. Joe Shaper only has to make small modifications to the thickness and rocker for their customers with minimal effort, all while keeping the work down to around an hour per board.
With your first few boards, don’t be caught up in exacting measurements of rocker and stuff like that. Think about how your tools will fit for each situation and work on being good with those tools.