I would stick with a board of the same volume you're using now - definitely not smaller. For reference, I weigh the same as you and mine is a Fanatic Blast 117, which I use with 7.8 and 6.6 sails. The smaller 100?liter version could work for me, but the big sail would be too much for it, right? With that setup (Blast 117 and 7.8) I don't need a wing foil

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