I enjoyed the skills demonstrated in 99 ball mastery skills. I do wish it was organizes better. Even in the beginner category there is a lot of variation in difficulty. I realize this is geared toward coaches, but I bought it as a parent to help teach my kids. I would have appreciated if there was an outline for progression with some practice guidelines. For example, practice these skills first, work on 5 at a time for 2 minutes each, then progress to these next 5 when you can demonstrate X level of proficiency. I’m interested in purchasing another program to help teach my kids, I just hope they are a little more structured.