jxk can you actually put numbers into that formula to get valid answers?
it really helps if you know how to get the formula to work.
second thing. in training you are generally flying aircraft designed to FAR 23.
FAR 23 contains handling requirements and the design will have been tweaked so that it meets the handling requirements.
not all aircraft are designed to FAR23 (or the equivalent BCAR) so dont get set thinking that only one scenario is the real one.
in the yaw with rudder thing if you look back through all the posts you will find that all aspects of the issue have been mentioned. in different aeroplanes the relative importance of each mentioned issue will differ. sometimes it is just a guess as to which has prominence. you as a pilot dont have to worry about the exact proportions you just need to appreciate all the factors at play and know how to use them to get the aeroplane to do what you need.