"Collision Induced Throw (CIT)
When a ball contacts another ball at an angle, the second ball’s departure angle is deviated in the direction of the first ball’s motion. The amount of throw increases with cut angle and decreases with speed.
Tip: To counteract the effect of collision induced throw either (a) aim to over cut every shot relative to the tangent line or (b) use a touch of outside spin."
https://bullseyebilliards.net/blogs/articles/19575939-billiard-physics-ball-ball-contact
Geometry is perfect but only gets you close to the geometric cut angle because of CIT that causes a slight undercut when the CB arrives at the ghost ball and collides with the OB.
Can you compensate to get the OB on the geometrically correct line by pivoting to the outside of the center of the CB with fractional tip offsets to overcut/widen the angle and apply outside spin?
If so, how much?
When a ball contacts another ball at an angle, the second ball’s departure angle is deviated in the direction of the first ball’s motion. The amount of throw increases with cut angle and decreases with speed.
Tip: To counteract the effect of collision induced throw either (a) aim to over cut every shot relative to the tangent line or (b) use a touch of outside spin."
https://bullseyebilliards.net/blogs/articles/19575939-billiard-physics-ball-ball-contact
Geometry is perfect but only gets you close to the geometric cut angle because of CIT that causes a slight undercut when the CB arrives at the ghost ball and collides with the OB.
Can you compensate to get the OB on the geometrically correct line by pivoting to the outside of the center of the CB with fractional tip offsets to overcut/widen the angle and apply outside spin?
If so, how much?