How do you need to aim to compensate for "throw" when you use english?
I will explain several methods of this technique, starting with a simple positioning and aim point determination for a shot.
I took wild1's diagram and modified it slightly to show the aim point.
This is where being able to imagine a "ghost ball" (in this case the 1 ball behind the 9) is helpful.
If you place the "ghost ball" directly behind the object ball (OB) on the same line that the object ball needs to follow to go into the pocket, then all you have to do is aim for the center of the "ghost ball", the 1.
What happens is that the CB, if aimed this way, hits the 9 exactly in the right place to cause the 9 to go into the corner. This same method works for all balls on the "wild1" diagram.
Basically the aim point is the center of the ghost ball.
The exception to this is when you use English on the CB, which will "throw" the OB (cause the OB to track opposite the applied English). How much it tracks off, depends on the amount of English and how hard you hit the CB. Throw is the process of "imparting spin" or "gear action" between balls when one (the CB) is spinning and the other (the OB) is hit. This also works between 2,3 or 4 balls in succession, in reverse direction for each new ball hit. Of course the effect diminishes as more balls are hit in sequence, but the effect is there.
