I use the TBU on a regular basis as this is the system the club i belong to uses. From having battled at Danville and getting to know the people who battle there on a regular basis. They would be very reluctant to allow a system that has features that can be altered from the TBU system. this is from expierience not speculation.
Quite a few of those players rely completely on the 45 degree defense. It is really your only defense against many of those players.
Under sanction contests just the simple fact that this new system can be altered out side of the TBU parameters leads me to beleive that it simply would not be allowed.
Eventually someone who would know for sure will chime in here and confir this I am sure.