The onside kick rule change is the weirdest, and I think it will be the most difficult to interpret (save maybe the still awkward halo rule). BITB nailed it on the head the other day when he was asking Walt Anderson, "What happens when 3 or 4 players on the receiving team raise their hands for a fair catch on an onside kick that bounces high in the air? Everybody on the kicking team will be forced to stand there holding their dicks." Also, how high of a bounce is high enough to be determined high enough to call a fair catch? Walt Anderson said the intent of the rule was to eliminate those style of onside kicks all together...but what if it doesn't?