A red neck way to make sure all the blades are in the same position when the prop is spun by hand. The Idea is hold a pencil or rule or stick in place on the strut and then rudder and make sure each blade is the same distance away from the strut and rudder as the prop is hand rotated. From the rudder at different heights, rake can be compared between both props. My thought here is damaged blades can scoop more water and apply more torque to the hull causing a list. Not all damaged wheels vibrate. It's a reach of mind (que Twilight Zone music), but possible. Now that we feel the hull may have taken a hit, prop damage may not be that far out of mind.