The goal of any pattern is to obtain the imperatives and essentials and sustain the line of compression in a repeatable and predictable way. Beyond that, the goal is for that action/motion to be as efficient as possible - the only reason, to my understanding, that Homer recommended anything - on the basis of mechanical advantage (efficient force).
Thanks EdZ.
__________________ "Solid powerful impact always be there at the second loop on the way down along the K& line of educated hands!?"