Keep it Simple
To the Original Poster.
My opinion would be to keep it simple when studying this game of pool.
I don't mind hearing from all the scientist that report their findings here on AZ and the robotics on the pool table trying to understand the game but,
really it's all about making the balls disappear into the pocket.
I prefer to listen to someone that has played this game for a living and knows exactly how it's done.
Then you take their advice to the table and shoot as many of these shots that you need to finally have a true understanding of the shot.
Here is a simple video of Rodney Morris explaining the "ghost ball".
https://www.youtube.com/watch?v=sq0spmZUoKY
Start watching at the 4:30 mark.
And...hear him say "aim at the middle of the ghost ball".
Sometimes people hit the object ball to full and run it right into the rail.
To me, this is a very basic topic but, I recently ran across this video and thought I'd share it with AZ.
Karate-