I'm getting ready to bite the bullet and pick up a drift sock or two. I'm wondering if I should go with one big one (60") or two smaller ones (36"). Will the two drift socks slow the boat down more than the big one, less than the big one, or about the same? It seems like two off the rear cleats would be great when I needed both and one would work when it's not blowing so bad. What does the Crappie Brain Trust say?