I don't think that graph is worth checking for Gerroa. unless the wind meter is on the sand out in the open, its not going to give an accurate reading. up on the hill is not as windy, and on someones house is too sheltered.
"Point Perpendicular + 10 knots" is still the better measurement.
The Kiter's had this to say about it!
www.seabreeze.com.au/forums/topic.asp?TOPIC_ID=45668
A bloke I work with reckons he found it somewhere down towards Black Head.
