Tried to improve, but couldn't reach the speeds from last week.

Used 20cm Z-fin instead of 19 cm to get more lift and were closer sailing to the sandbags. 

At the end of the day I found out theat the cross batten was split and the mast sleeve was worn through by the trailer. On the most important 5.6 sail. Waiting to for higher winds to use the new 5.0 speed sail.