I spent the money and have every season's CMBA Pitching Grades, so that is no obstacle for me now. But I always go back to, and have been using exclusively for some time now only the CMBA System one.
I do however have a version that using the COXX Pitching System, plus iterations that use the Modified COXX and anther similar type system. The biggest plus 'to me' is using the CMBA Pitching System, which is a must 'to me'. I play using a binder, so the first page in on the left side, the second page in on the right side.
I attached a copy of the 1st Base Situation as an example. Something I have been using and fine tuning for the last 10 years or so. I've created and use a Baseball Game that is a Hybrid built first off the Basic, then the Master Game, and finally with the CMBA Pitching System built in.