I can remember there being some kind of drought in California since I was a young kid in the 80's. Things haven't changed. I've been trying not to flush my toilet as much. Maybe TMI. Constant drought means it's dry and often dusty out here in the Bay Area and nearby Sierras. For these conditions, the Thunder Burt is ideal as a rear tire. It rolls fast and has enough corner grip for all of my XC needs. Paired with a Racing Ray, I have no complaints. I replace them when the side knobs are shredded. My only complaint is that they cost a lot.