I agree 100% with Mobile Bandit. For the past several years my units have gone up in baskets looking for very similar plays. I have posted a couple here on LVASports. It helps to be watching the game or listening on radio. Key players may have been taken out or injured.
10 years ago you couldn't bet or hedge with second half bets, only on certain TV games. Now the full slate is available and should be handicapped.
T-Tad, I would look initially at favorites behind heavy, and then laying no more than -8 in the 2nd half. However be aware that small schools do not do well in this situation. I've found that you should make a line first, stick to it and if the number comes up, you have a play. The more you do this the more comfortable you will be betting 2nd halfs.