Mark T. says, "I’m a 50 year old 4 to 4.5 ntrp male tennis player. P123 is really effective and gives me a plan and strategy everytime I step onto court, instead of figuring it out as I go along. Helps you to understand the court geometry, where to hit the ball, and why. After a while, it becomes second nature and repeatable. Also, you can use it as a solid base and platform to start with, and if you like, you can vary bits here and there to adapt your point, while in a match play situation which throws up surprises all the time." Read more