Hi fellow sailors. i have built a class 5 YOTT and have been using a used land yacht sail i was lucky enough to find on the internet that I was told is a 5 meter sail. The sail is not labeled anywhere like a windsurf sail with the square meter size or luff size so im taking the sellers word that it is a 5 meter. i have compared it to some BLO KART 4 meter sails and it is slightly larger and seems about right to be a 5 meter. So here is my question, We have had several very light wind days sailing here and with the wieght of my YOTT and my wieght i need a larger sail for days like this. I know class 5 rules restict the sail size to 5.5 m2 for racing but this is for recreation sailing on light wind days. HOW BIG A SAIL DO MANY OF YOU USE ON YOUR CLASS 5 YACHTS? i WAS THINKING OF MAKING A SAIL AROUND 7.0 -7.5 METERS. Do any of you use sails that big