It gets to a point where it becomes painfully obvious that the players who might actually be qualified to make judgments regarding a matchup chart (and indeed even need to know the matchup chart to begin with) are never going to make a matchup chart. Knowing the numbers doesn't change the game. It doesn't magically make a matchup better or worse for you. Those numbers are nowhere near as important as knowing the actual matchup, knowing what the opponent can do and what you can do to prevent or overcome it.
I guess what I'm trying to say is stop trying, and just play the goddamned game.