+1 on Bangers sickness
As far as Track it only really tells you a little.
First # equals the Series, This I can actually get with
Second# equals balls MB rating, This means nothing to the vast majority buying the ball and changes with putting holes in the ball.
Third spot/letter is the ball shape. This will also very with the layout and any surface changes that come along. Not to mention how they are making up new meanings for what the same three letters stand for. Or start combining them. 916AT, Then the 718ATC, or 915CAT whatever else comes along.
Past the first number being the series the rest means very little.
"1 of 1."