Need some help on which tonneau cover to get. I had the Extang tuff tonno before and loved the belt rail system, it always stayed tight, rain didn't pool up, never leaked. But I didn't care for how high the bows made it. I would like to have a tight, leak free, long warrenty, roll up cover that wouldn't be so high up. The tuff tonno was on a F150 now I have a F250. Anyone want to share pics and there experience. Thanks