Obviously, one of the biggest is that TX HS doesn't switch sides at half time. Also, the TASO manual has B take #2 in a trips formation with the short wing taking #3, whereas in CCA B takes #3 and the wing has #2. I haven't worked much Texas 7 man, but I think everything else is pretty minor. Also, if you're looking at the 8 man stuff, know that they changed C's position for scoring kicks. They moved him back into the offensive backfield this last year. The R faces the holder and C goes to the opposite side and has the T and TE to his side. U still has C-G-C and S has T & TE on R's side. On punts C is primary on the shield. C also has goal line on all changes of possession now, including scoring kick attempts.