The Marstrom Tornado is one of the stiffest boats out their with very little deflection or twist between hulls combined with very efficient rudders.

In comparison to the H16 with it's elevated deck and slender hulls, twists and deflects a great deal more than the Tornado. Playing the main, crew placement, in concert with wave action create twist and deflection on the H16 and cause the rudders to NOT act in unison creating drag. (not to mention rudder slop)
But as you know it takes a lot of practice to be able to take advantage of this shortcomming.