im not sure where you can get it but the judges had it at the nationals. its the system where you either have to name the trick before you do it ( which is gay) or there is a judge that decides what the trick is and what the difficult is. lemme see if i remember. it goes from 1 to 5.5 and its the multiplyer just like arials.
1.0-straight airs( twisters, spreads, grabs)
2.0-360, switch 180
2.5-540, switch 360, front flip, backflip, sideflip
3.0-720, switch 540, zero spin, cork 540
3.5-900, switch 720, cork 720,switch front, switch back
and i forget the rest. but you get the point. maybe you can download the judging manual somewhere