G'day, I am on V1.1 UFOs, 7m and 5m, ride choppy ocean on a range of foils, 990cm2 to 770cm2 (Moses 679, 695), I am 95kg kitted up. I am looking for a size smaller than the 5m as I find it gets too much once it hits 20/22+ knots (this is a guess, did not measure). How big is the step down to the 4m ...