RE: Which is lighter?
Which size wings are the target ?- and why not Fiber-Glass ones to compare with ?
It looks to me for thick (pattern-flying) wings the Foam is maybe(?) not the best solution, but
it might be better if someone wants to have hard-surface by oter reasons and monocote is
not so robust for that. I like the smooth, exact(!) surface of the foam wings but almost no one
is making them arround at low cost. Could you name some not-too-expensive foam wings
one can get from the main RC suppliers ?