[e.m.p!]

Uh yes, thanks trux, I checked out your collection before but didn't think about it before. Thanks guys that you've shed some light on that and for the link collection. That was a really interesting read, but still think we haven't reached the end of the evolution yet. Just have a look into the development in thermoplastics and such, I wonder where all this ends (if). I remember seeing an experiment simulating a Tuna in motion, the whole setup looked rather complex and way too complicated to be mimicked by humans. Think it was conducted in the flow channel of the TU Berlin.... (not sure thou). Bottomline: As you guys mentioned before there is more to it than just the findesign.
Anyway, this thread is about bionics in freediving, so I hope to have started a discussion not only dealing with fin designs but with other nature inspired gear as well?! Keep it coming!
P.S:
Christophe, are you working for this lab that tests all the new sport gadgets people are trying to get a TÜV/GS certificate for? Or is this one in Berlin? Schöne Grüsse aus Neuseeland!