I don't agree with ta0.
It's true that the player who wants to register both division must make two routines that this is their own decision. Because of the different ratio of technical to performance, it is so difficult to win the two division title with one routine. If the players want to win the both divisions, they should make two routines for each divisions. If I wanted to win two divisions, I would have wanted to make two routines.
We should consider the reason why we have traditional division. Is it just for wooden tops? If so, we should change the name of the traditional division into "wooden division." In terms of "traditional," I agree with Jim.
I my opinion, the open division should emphasis on the technical like sport. The traditional division should emphasis on the performance like AP division in yoyo world contest.
one question
In the open division, the ratio of technical to performance is 90:10? not 85:15?