Definately agree Daryl, If you're not getting enough flick off of the top of the main then pulling the mast rotation in will fix that to some degree and would be the first thing I would try in combination with more downhaul.
More downhaul also allows the sail to flick more open at the top so give that a go as well.

You're really only looking for flick to start happening when you are pretty well powered up and have a fair amount of downhaul on anyway.