check this:
we were probably a little too far back but this is pretty much at the back of the boat- and like robi said... the boat can and will ppole upwind and definately on a reach if you try to stay forward. If we were any further forward on that day we would dig in the bows and slow way down. It was pretty windy that day and we almost did pitchpole a couple times just powering up after gybing- even without the spin.