First time Southend on Sea. Average calculated from 5 best runs from my gps screen is 87,6. Missing some runs in the software, if i switch the "on" to "off" in gps results i get those 5 runs.. Maybe Dylan can check this for me and explain. 

But it doesn't matter, stil a nice session with topspeed over 50 knots, spot record and a decent Nautical Mile and @500. Tomorrow looks better but i'm now already out of energy, you can sail here for hours.