Rocks, and open desert, as in bush dodging. That's probably what pushed Suns allergies over the top. I feel sooooo guilty.
It's not your fault Timo. It is part of the reason I hang back out of the dust, the other part is Im just slow and old. I know what Im in for when I ride the desert and I accept it. I will say I am pretty picky when it comes to which desert trips I choose to go on. I only make a few "special" occassions a year now. Spring is the worst!