I am dropping the lower unit to change out the water pump impeller on a Mercury XR4 150 Black Max. The sacrificial anode has a 2.5" fin on it and the prop is a 4 blade SS. Other prop details unknown. Should I angle the fin any when I reinstall it? The fin was straight before and the torque pulled the wheel pretty hard to the right (I think). Would angling the fin help with that pull?