Well I've tride both. My ws ride is made a little funny on the bottom. It sounds like I've got 50 inch mudders on the wheels when I pass 45mph carrying it bottom down.
It's hard to load seat down w/ rod holders gps mount and the rubber covers. It doesn't slide easily and this yak is heavvvvy.
So I broke down and bought some yakima aero hullraisers. It doesn't make a noise while in transit now and it loads much easier.
It just looks funny hauling it down the road.