Ctel ............ both of those are on the same shot line also, cue ball stayed in the same position on both shots.
That diagram is what I and others have been looking for. It is like a Tabula Rasa to me.
Geometrically, there is a difference between a 45 degree shot line vs. a 50 degree shot line as your chart shows.
Starting at CTE line and then capturing the secondary A, B, C and 1/8 line gets you close to both angles - in your diagram, I believe "C", but there is an adjustment (as shown in your chart) like those when applying stun, high top, draw, left or right english that alters the path of the CB and OB to the intended target.
This what engineers want to know...how does one achieve the cut angles between A. B, C and 1/8? I can diagram these almost infinite paths to the GB that sends the OB to the target...but who cares?
If there are diagrams like those that JB Cases posted in the DVDs that show the geometrical relations to achieve the cut angle required to the requirements of the system (that I don't have) then I haven't seen them here.
Adjustments must be made whether conscious or not...perception is a powerfull thing that gets you there but hard to diagram.
I hope that JB Cases chimes in for he has a grasp of the disconnect that engineers have with this and similar systems.
Just saying and not knocking for I am a believer in what Hal and others have proffered about CTE aiming but not geometrically diagrammed...not that that is important to non-engineers.:thumbup: