not up to date on the big b stuff, but how closely would the red zone be to the solid speed zone? similar diff numbers, a light scuffing of the red zone cover may get you pretty close to the look of the speed zone, IIRC the few speed zone solids I have seen were balls that read the mids well, and had a nice hared continuation on the back (ala the new zones of today?) so mathing up the coverstock prep and a proper drilling should get you pretty close