Anyone else struggling with wimpy air blowing from the vents? Mine's totally crapped out twice already, stuck blasting air only at my feet. The dealership "fixed" it both times, but the airflow still feels pathetic. Thankfully, I'm in a cool climate, but this wouldn't fly anywhere hot! Before I battle the dealership again, wondering if this is a common Mini problem? Anyone have any tips or tricks to get the vents blowing strong?