great point gman...there have been cappers who have offered information about this system cooling off in the months of Jan, Feb, and March.....maybe this is an explanation why! Teams that start off ranked who struggle and as a result find themselves out of the rankings (but played very well while ranked early bringing themselves exposure) could be a defining reason why some have experience a change in the system as the season gets older.....
Personally, IMO I think that Vegas favors the unranked home team in these situations to pursuade money on the ranked favorite therefore making the unranked favorite home team more appealing to me. IMO, there thought process is that there is a great number of gamblers out there who don't do extensive capping but rather will look at only the rankings and will see a ranked team (in this case S.Caro #25 or #23) GETTING 5 points over an unranked team (Vanderbilt). In addition that same group of gamblers will tend to play the more high profile games (good for vegas that this group of people also tends to define high profile games as games with atleast ONE ranked team playing)....
Of coarse we (all of us at madjacks) knows better then the group of people I am referring to.....
I will do a write up on my opinion soon.
GL
YAZ