New Cages For T A D ?

I see Frank Hawley's has two TAD frames for dale because the cages aren't high enough for TAD. Is there something we should know about 2008? Are the new John Force pads going to be mandatory in TAD, and the spec for the cages has changed to accomodate? Just built a new frame in 2006 and want to know if we have to do it again. Any help from chassis builders with knowledge of the latest SFI specs would be greatly appreciated. NHRA always tells us of the new rules the day before we cert the car, and I'm darned tired of that.