Ours is like the drawing but we have a separate line running through the downhaul blocks. The line running through the blocks is a little smaller than the line running through the beam and we tie each end together with a sister clip or small plate with 2 holes (pull line through hole and tie knot). If you forget to cleat one side you can just pull until the plate and knot stop at the cleat and it is also easy to unrig by leaving the line in the beam and the other line on the mast. You will have to recenter the line after doing some buoy racing.