I'd rather not derail the op, but yes it has been noted and no I don't think it's the saddle.
What I learned in the tunnel, was that for me there was a big gain going from a f-bend hand position-which is very similar to s-bend-to a ski bend. But Jack is right you don't know unless you test, and that is why I tested.
Also, one of the other posters mentioned that his flat back would probably preclude him from gaining, but as you see in the video my back was pretty flat to begin with. Point is you don't know until you test.
Not to derail this thread into the value of the tunnel, but that front wheel gained me a .004 drop in CdA. That is nothing to sneeze at but it cost me over $1k with tax. My trip to the tunnel was less than that and the position changes netted me a drop of .018. In watt speak at 26 miles an hour I'm saving 4 watts with the wheel and 18 with the tunnel and 7 of these were the hand position.
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