In 15-20 knot winds, definitely going over 10 knots upwind (from GPS data).

I'm fairly convinced it is a combination of forestay sag and deepish main (mainly from not pulling on enough downhaul). I may be footing a fraction, but it usually feels like I'm pinching, and often get abused by crew for it.

We'll see how it goes tomorrow with tighter diamonds, forecast is for a blow!

Downwind is another story, I know I sail too high because it is more fun. Will work on it tomorrow as well.

The purple section coming into the top mark is footing mode. Green is slow (coming out of tacks/gybes etc.) Shades of blue in between.