heymatt is right. . .definitely a bio. cork you drop your leading shoulder back as you start your rotation, bio you throw pretty much like a misty, just less inverted, which is why it looks so much like one. most people dont know the difference neway so it doesnt matter. either way that was sick, real smooth.
im pretty sure its a cork 7 he just spins really early off the lip. because wat i ahve been told to do a cork u through a mysty just not hard after u ahve reached 90 or 180 in ur spin, he just does early.