Hey! Something that Rick and I agree on! I've been trying one rudder up downwind, I have the pre 2005 rudder system, and I feel that I steer more with one rudder. It doesn't seem to make much difference so I guess dragging two rudders through the water slightly sideways must have about the same drag as one rudder more sideways. Plus I seem to be unsmooth (word?) about the up and down thing when jibing or rounding a mark.

Your mileage may vary.