this is preety much what I told the other guy asking the same question. . . . . . .
"wakeskating doesnt rely on a reccomended size chart, I suggest you go down to a local shop and stand on a few see what feel most comfortable, if you can demo thats even better, but truth is size has more to do with your comfort and the type of tricks you want to do, oboviusly a bigger board will go W2W better, but a small board will be easierto do technical tricks on, also a compression molded skate will be more bouyant than a wood skate so that will make a difference too. . . . btw I ride a 39 inch skate and Im 6'1" 225"