It's a good idea, those big, narrow, smooth wheels. My mountain board is too slow, and my Snakeboard is not rideable with big wind. Either I get a smaller wing than my current my current smallest, a 4 meter, or I setup a board like that. Where do you get those big narrow wheels?
I just noticed that I watched and commented on this video at least three previous times. And yet I have no memory of this. Does riding wings give a gentleman a touch of amnesia?
Really depends on the wind. But riding on concrete or asphalt, you do not need a big wing. A 3.5m to 4.5m is generally good for most people, wind and rider weight depending. This video was in 8-9mph winds.
I have not fallen often with wings compared to riding without them. There is a weird kind of two-point stabilization that I get from them. And also, my wings are so damned expensive that I ride more carefully for fear of screwing them up.