Do you reckon we ll be on 7s more than 12s? Comparing the wind stats are a little misleading...
80kg. 20hrs on 5m and 7 hrs on 7m in 6 days. No other size used. Actually I purchased 5m Vector for that trip. Never ridden size less than 5m in my life.
My forecast looked the same as the present one. Multiply the WG gusts by 1.5-2 to get more or less real conditions on the beach. Based on my 6 days experience a week ago I wouldn't take 12m at all.