I have been playing pool for 26 years. The more you know about pool the more you will take away from Tom. If you have good basic Tom will help you refine them and get you over your plateau. The aim systems he teaches are just crazy good. Aiming System the grail , point and pivot and fractional ball. The funny thing is that you never have to ever miss with good fundamentals and the grail. Lets give credit to the man that invented the system Thank You HAl Houle. Hey if you read this and know what i'm talking about help my rep please.