Well I for sure don't understand that. The position of the front hole in the rudder determines the rake. The tiller assembly pushes the top of the rudder back, bottom of the rudder goes forward, so that it touches the front of the lower rudder casting. What's adjustable? The little screw in the lower casting only adjusts how deep you want the hole punched in your rudder.

So assume that you didn't change your rudders. Do you have tiller pull? How much?