copied this from STU website. smoothies suck for duning period again JMO, they dont help you turn, they just dig and push. if you just wanna drag by all means run a smoothie.
Sand is to ATV's as air is to a plane and water to a boat. It all works the same. So, create a bigger tire and more footprint and you get more floatation. Sand moves away when you push off it and it moves around when you apply pressure to it. So, it follows that a front sand tire should turn through an unstable medium, like sand, just as rudders do on planes and boats. We gave this tire a biased rudder.