I try your sail guys, Wave 3.7 never see in our sport a so amazing/magic sail, is a step in the future, It looks like a sail from another planet. I have been windsurfing since 1984, I have been using membrane sails since 2018, but I had never tried such a thing, this concept of sailing could attract new practitioners, it concerns everyone from the strongest to those who have just started. Big congrats and yes I will buy it as soon as possible I will start from 4.7 Wave and than the next step will be 5.0 Xover or 5.4.