So, how about this:
Try, B-3. B99 is at the B-1 1/2 at the snap. After the snap, B99 runs forward and leaps over the shoulder of A55. The ball was muffed by the intended holder A88, passing through his hands and flying past him to the B-12. As B99 is making his leap, the ball is on the ground at the B-12. B99 lands at the B-3 1/2, as A88 and the intended kicker, A19, attempt to recover the ball. A moment later, B99 successfully recovers the ball.
9-11-b says that it is a foul if a B player leaps to to try to block a field goal. So, in this play, there wasn't a field goal attempt. Does that fact, in itself, mean there is no leaping foul (i.e., it is OK to leap over an opponent, unless you are trying to block an actual field goal attempt)?
Robert