The #'s and ML
Bookies are very reluctant to move off key #'s such as 3's and 7's.
That's the whole reason for making those spreads is to continue
having action both ways and then swaying opinion with the attached
moneyline and not exposing themselves to buy-backs and middles.
The bookies know what their doing trust me! They are at greater risk
at moving the # than they are moving an attached moneyline win or
lose. Because they guarantee they won't lose everything that way and
in the long-run that favors them! Prosides