Yesterday evening, we had again perfect Ultrasonic conditions: 8 (average) - 14 (peak) knots. Typical evening breeze.
I used my 10.9 sail.
Early this year, I bought an older Deboichet R12 / 64 fin which I used now for the first time.
I can recommend the fin to everyone who likes to sail the US147 in very light conditions.
It is a very soft fin with lots of lift in light wind. Free of spin-out and it points very high. Much better than the standard R13/58 fin.
IS87 / IS101 / RRD114 / US147