So we played with 1/2 inch rope from stern cleat to stern clean under the hull yesterday. Boat rides a little bow high so figured we would give it a try. The results we pretty mind blowing. I really feel this hull need to be as level as possible for optimum efficiency and performance. (42 wesmac). Well with 1/2 rope we gained 2 knots the bow came down over a foot and load went down 5%. The boat has two ducers on the bottom right before the transom which were making the rope pop off after a while so we couldn't do it for extended periods of time. Both units are old and need to be replaced. So We are going to remove those two ducers, fiberglass the holes and test again with bigger rope. I am excited with the results and looking forward to finally getting this boat dialed in the way it should be. I would do this just for the added visibility. The speed gain and load dropping is a nice bonus. Need to figure out which route we are going to go. Trim tab or glassed wedge on the hull.