I really love Herkingen, even when it's only 15-18 knots.
I'm happy I could sail with this set, the biggest I brought with me, because they predicted 30 knots of wind .. Haha, it was only the half.
Had a nice cruise with this combo and with a lot of good friends. Of course 7.8, and even the formula would have been better/faster but I don't mind.
86km distance in less than 3 hours is nice in december ;-)
Really like my 500m and @500m in these low wind conditions.