The tire you are running is bigger than Mavic recommends (19 - 28 mm for OP) although I've heard of others who have run bigger without problem.

I did manage to kill an Open Pro - must have hit one of our large holes or something square edged that produced a snakebite flat and dented the rim while wearing a 28 mm Conti 4 Seasons at 100 psi. I don't know if a different rim would have held up better to such abuse.