Not sure that it matters, but my experience is based on Hobie 16s. Mast rake makes a huge difference in pointing ability. If the mast rake is set up to pinch, and the rudders are not set properly, they will add drag as you try to steer down to a faster angle (and the boat won't go as fast as it could, because of the drag from the heavy rudder).
Yes it matters. That's way I said "on boats with boom and daggerboards". I agree that rake is important on a H16 and even more on boats without boom like Dart 18, etc.
