Quoted from flynnibus:some people find it helpful to drill on certain techniques. Don't play every game as if you are trying to get your best score.... but instead practice a certain technique. Like a drop catch, bounce pass, etc.
I spend entire sessions trying to do one or two things on one particular game. Such as one flipper technique and making one shot over and over. That has helped me the most.
Knowing the geometry of risky shots vs reward will extend your ball times. And truly understanding how the rules interact such as stacking (as opposed to just knowing what they are), and having a strategy to use those rules to your points advantage is the next step.
