Impromptu session knocked off work at 1.30 and caught the tail end of the WNW change, cloudy and rainy. Bit disappointing really as timing is critical at this spot. Half an hour late hitting the outgoiing. Best run was short and sweet but entering and crossing the spit was choppy killing  entry speed.  Ran out of runway and grounded at the end of my best run. Rest of session wind faded. 37.78 knots on the dial. 100m run