Mostly opinion, but I believe scoring would go down. To get the most carry out of the ball, the bat should be contacting the ball at a downward angle to get the backspin, which is easier to do when down in the zone. There is also some minor assistance in adjusting to a pitch further down in the zone by dropping the bat with the assistance of gravity, rather than trying to lift it at the last split second. Can't think of where to get you much documentation on that theory right now, but a close similarity of increasing the height of the strike zone would be fastpitch softball, where several shows have studied the struggles of pro baseball players trying to catchup to a Jennie Finch pitch having to due with the change in contact points & angle (as the reaction time is quite similar for the slower but shorter pitch). While the riseball is not a real option in baseball, there might be some minor carryovers of trying to catch up with the high fastball. Edit: I'm out of town, so let me know how your listeners tear that theory apart http://forum.brewerfan.net/images/smilies/smile.gif