Funny you should ask .....
There are some here promoting elaborate aiming systems that require physics degrees, the purchase of protractors, plumb bobs, and scientific calculators, not to mention twisting and shifting your arms and legs as you stroke .... CRAZY STUFF--- CRAZY I TELL YOU!!!!
When we all know that all that's needed is the edge of your shaft.:grin: :wave2:
You missed the most important element which is the pre shot routine pirouette.:smile: