The figure below illustrates that the reduction in taper angle can be compensated for by using a pin that is three times longer while maintaining the same misalignment tolerance on the error between the hole centerline and the pin centerline when the face of the pin reaches the face the hole is in.
Use the maximum torque on the pin from the CG being off axis and use an FEA model to solve for the angle of rotation A (radians). Now if the largest radius of an important feature on the WP is R (mm) then that feature will move tangentially R*A (mm) from where it is expected to be for a perfectly rigid coupling. In addition to that, there is the gravity sag of the WP added to that movement. Consider that when the WP is rotated 180 degrees, the feature moves in the opposite direction by that same R*A and the gravity sag also reverses.
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