Anyone have experience on these tires? Good/bad/ugly? I got a set for FREE and was thinking about putting them on a Mavic Crossmax SL Disc wheelset.

They would be used mostly for endurance races (Nor Cal) on hardpacked ST and fire roads.

Me: 150lbs
Bike: 2009 Giant Anthem X1

I've seen tons of posts for just about every other Maxxis tire but nothing on the Ranchero.

Anyone? Anyone?