Don't know if you got a chance to see Eddie Bravo's Mastering the Rubber Guard book yet. I know you have spoke favorably of him in the past though.
Anyway, he has a whole flow chart layout with what what techniques and transitions group together to achieve different objectives.
I read about your use of "systems" in BJJ, but I only have your older material which I think you said is pre-system. Would Bravo's flowchart be an example of what you would consider a system? If you have seen it I would be interested to hear your thoughts.