I agree Jerry. I'm no expert on sailing a square rigged ship, but have done a ton of reading and generally, the clipper skippers piled on the sail for max speed. It has caused me to wonder if one sail would block the wind of another, but perhaps its in the furling shape and angle that is the secret in getting the max drive out of the square sails. I do have sailing experience, having owned three cruising sailboats, all marconi rigged. Square sails are a science all to their own and obviously worked. One can't ignore the beauty of a clipper ship.