Thanks for the explanation. While I sail my F160 a lot, I only race it 5-6 times a year, so investing in a quiver of fins doesn't make a lot of sense for me. However, I have an
4 year old R13-m (don't know the rake) and use it for all sailing except for high wind (20+ knots is high wind for me). I have an older Curtis 68cm fin, which is stiff and seems to offer better control in the higher winds, but doesn't point well unless I have a lot of board speed, which I normally can't maintain in rough choppy water.
My understand from Remi some time ago was the the Drake fin that came with the F160 was similar to a R13-S. If that is so, wouldn't it be an option for higher winds? I haven't tried is in higher winds, plus I am pretty sure that it doesn't offer any advantage over the R13-m in light to moderate winds.