Ahh you know this Brobu !

We've been through all this when we tuned out your boat. Theory and reality are somethings two completely different things.

Problem with theory is that it is very easy to stare yourself blind on one aspect of the situation (higher theoretical lift to drag ratio) only to completely miss the full picture that may limits any gain of that particular point you're looking at (longer boards make boat trip happy, nervous and limits raw power by a system of linked fulcrums and leverages)

Wouter