A F16 main on a type R platform was great at going upwind, don't ask me why but I'm sure it points higher. We have had quite a few beer discussions at the bar over this but no one has come up with a clear answer as to how a slightly narrower platform (200mm-8inches) could point higher but it does. Also, in the lighter stuff you can get the windward hull out quicker both up and downwind and the platform could be stiffer. So all in all there's extremely little overall speed difference between the two. Like Pepin admits it's the nut on the end of the tiller that wins, loses races in most cases.