... has anybody ever heard of a system like this? The logic is that Vegas is trying to get you to take the hook with a +3.5 "favorable" spread, so if you intuitively took the opposite each and every time you saw it, could you approach a high 50's winning percentage?
I'd love to see a few years' worth of NCAAFB and NFL tallies that show how often a -3.5 team covers (and for that matter a +6.5 team as those seem the key numbers to me).