Wouter, I just had a thought:-

You could sell your theory on 3DL sails to the highest bidding Olympic federation. They are all looking for a edge in the upcoming Beijing Games. The Finn sailor that has a full 3DL sail will have a nice advantage over his competitiors.

All you have to do is convince the ISAF measurer that the Continuous layers or fibres are indeed crossing the invisible seams... Good luck with that <img src="http://www.catsailor.com/forums/images/graemlins/smile.gif" alt="" />