Of course they do. It will strenthen all you your lower body muscles and fine body motor control down there. I use an Indo board which was designed by a surfer. Its really helps to integrate some exercises when using it. I can do squats, a shuvit and 180 spin on my Indo.
I have seen ollie 360s and all sorts of crazy things on an Indo. I think the Vew do are more skate influenced, but anything you can do to strengthen your legs and improve your balance in the off season will pay off... for sure.
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