Ive never seen such line movement in totals, or in anything really. I copied and pasted some of the games that show huge changes in the totals between the opening number, and 20 hours past the open. (the games I left out were virtually unchanged.) Everything was set way too low, (except EWA/NMex) now the bookmakers leave themselves open for slaughter, being bombarded heavily on Overs.
At this point in the season, I think its safe to assume...if youre going to bet the Over, do it early. And if you like the Under, wait. Thats not to say things wont change as bettors and books get to know the teams a little better as the season goes on.
The only question I have is, does this only happen during the first few days of cbb, where very little is known by oddsmakers, who have to scramble every time some wiseguy or insider wants to get down?

We'll have to wait and see...
7:00 PM EST
709 new mexico state 152.5 157 / 158 / 158.5 159.5 +1240
710 duke -17 -05 -18.5 / -18 / -18.5 -19 -1800
9:00 PM EST
715 hampton 142 147 / 148u14 / 148u13 148u15 +1140
716 maryland -16.5 -05 -16 / -15.5 / -15 -15.5 -1600
6:00 PM EST
717 delaware state 118.5 120.5o14 / 121o15 / 121o06 121.5o21
718 columbia -3.5 -05 -3.5 -05 / -4 / -3.5 -3 -155 12
9:00 PM EST
719 wisc green bay 139.5u08 140 / 140.5 / 141.5 142 +1040
720 ohio state -15.5 -05 -15.5 -01 / -15.5 / -15 -14.5 -1500
7:00 PM EST
721 siena 157.5o08 157.5o08 / 157 158 +940
722 syracuse -16 -05 -15 -05 / -15.5 / -15 -14.5 -1300
10:30 PM EST
727 western michigan 152 153.5 / 155 / 155o14 156.5
728 oregon -16 -16
9:00 PM EST
737 georgia southern 138 141.5 / 142u09 / 142o10 142o15 +1040
738 florida state -16 -05 -16 -05 / -16 / -16.5 -17 -1500
7:30 PM EST
743 the citadel 125.5 134 / 134u14 / 136 135u10 +1900
744 south carolina -21 -05 -23 / -23.5 / -24 -23.5 -3000
9:00 PM EST
747 e. washington 144.5 141 / 139 / 139.5 139.5u14 +1640
748 new mexico -19.5 -05 -20.5 / -20 / -20.5 -21 -2600