First of all no one "NEEDS" to agree about CTE. CTE is a method of aiming inside a larger genre of objective aiming where even learning a part of it can dramatically improve aim and shotmaking. Not everyone goes the distance and learns it to the depth that Stan and a few others have gone.CTE'rs need to agree with each other. They contradict themselves.
Stan says the half-tip pivot is essential to cte .
Says they don't need to know the contact point or ghost ball or tangent line.
Some followers make their own cte process .
Heck some claim it worked great BEFORE they even learned it .
Tangent lines are important for position play. Once a person finds the shot line the tangent line then follows. A person can certainly use the pocket line to determine a contact point at the object ball and thus see the tangent line. None of which is needed to aim the cueball TO the object ball using CTE aiming. For me though my ability to see and use tangent lines got stronger after learning CTE because having the right shot line TO the object ball meant that I could KNOW where the cueball was going and where it would hit the object ball. In other words instead of working backwards from the pocket-object ball-cue ball I could start working forwards cue ball-object ball-tangent line.
Even a hacked up or incomplete version of CTE is better than ghost ball imo