I'm running TB as a rear tire here in southern California, where everything is loose over hard pack, hard pack or sand. Works great, has great bite for climbing, sometimes not the best grip braking, but acceptable. I'm at 460 miles, it's starting to get a little ragged, but I have another one sitting in the garage to replace at 500 miles. At about 350 there was a noticable reduction in bite when climbing looser stuff, or the loose over hard mentioned above.
It might just be me, but I feel that it doesn't work as well when leaned over, so might not be the best front tire.
