FYI Catalina e-mailed me with the center of weight for the catalina 30. In the manual it has a drawing of the lift points. The lifts points are 17" in front and 17" behind the two stantions in the center of the boat. With the straps in this position the weight is distributed exactly in the center. Which is 16" forward of the very bottom leading point of the keel. Thanks Catalina for the info.