I have to respectfully disagree. Over the last few seasons I have experimented foiling in higher winds with five, three, single, strutless and Peak4s. In sizes 9,8.5,8,7,6.25,6,5,4,3.5 and 3m. I remember being stoked holding a 9m 5 strut Rally into 20 knots and feeling like I'd found something comp...