They lost to JCA last year because JCA hadI think this difference is both RB and JCA are much better teams than Rochester and Jacksonville and therefore would have a better chance of being successful using this strategy.
1) a great lock-down defense
2) two of the best HS RBs that I've ever seen. They are, based on the games and game fragments that I've s seen, not as good this year.
R-B has, I think, a better offense than JCA this year but from what I saw against Morris, nothing like those two animals JCA had last year. I think the game would balance on their defense, which like SHG does not seem to have been tested except by Normal West.
Rochester had a much better offense than this year with a player who is starting as a freshman at UIU-C and split with an SHG that was, again IMHO, not as good as this year. Morris didn't look so good against R-B but everyone has down games.