I've run the air force book un my RB broke his back.
You really need to practice from it and have a mobile QB. Try running it wil Cal - because Cal has two MONSTER backs, so you essentially attack left and right from the same look.
And if they get hip to your pre snap motion just hand off to the full back.
Careful on some of the flexbone passes though. you have to option out press A (or X) to get the receiver icons to come up, and that causes a stutter that often leads to sacks.