Ken White (Las Vegas Sports Services) has said he has a number for all the ballparks and that's where he starts when creating the number he releases..
I seem to remember him saying 10 1/2 was his base number for Arlington....
Saying that, you have a valid point.... probably a little more value for the under bettors at this point.
Only thing that worries me is that: Now that they are out of the race, you might see the Rangers bring there bats to thie game... pressure's off...
I've seen them do this in the past... they screw their own season up and then make a point of trying to screw everyone else they can in September....
Good luck with whatever you decide......rb