So after slogging uphill towards the topmark in 20kts, I let off vang, cunningham, outhaul and pull up daggerboard halfway - let out main as fast as I can while I bear away keeping the boat as flat as possible. Up she pops onto the plane, heading downwind - then splash - big deathroll that I cannot control by sheeting in and bearing away. Should I keep on more vang? Should I broad reach down the course like a skiff? Ideas?