Put some Maxxis Flyweights on my Superlight today.Ran 42 pounds of pressure.Man,very very low resistance.Although they are very flimsy when you are mounting them thet seemed fine on the trail.It was muddy in places today and traction didn't seem to be an issue.Does anybody have any extended experience on these tires?If reliabilty/flats aren't a big issue,I have found my race tire for this season