After a slow start, tough enough day and feeling well bruised and battered. 
Was getting into it but got stuck on same speed till Vincent checked the settings on my sail, straight away over a knot faster tnhansk to 1/2cm more downhaul.
Then smashed jaw into boom at finish, nothing broken I think. Followed by next run getting guilotined by Andy Laufer at the start from stray equipment. 
Tomorrow is another day.... more to do