<p>Going on a trip to Cuba and plan to do some street shooting with 2 cameras/lenses. I am thinking about buying the double harness black rapid DR2 system. I would like to wear my camera backpack, (f-stop Anja backpack) while out for the day in order to carry water, raincoat, portable tripod and protection for gear in the event of a sudden heavy rain. Wondering how functional will the double harness system be while wearing a backpack. I'm about 5'6" 155 pounds and am considering the slimmer DR2 system over the bulkier DR-1. As an alternative, I could just get a rear facing fanny pack instead which would work but would be less functional - harder to affix a tripod too and the gear would have to be cushioned with some clothing in the event I have to stash gear during a heavy rain.</p>