I like the halftime idea. It is better than a regular insurance bet (you have the lead in a March Madness pool up til the finals so you bet a little straight up on the team you didn't pick to make sure you at least get some $$$) because you can hit both of them.

I'll have to look at the halftime lines. Have you seen any lines for this weekend that are a point or more apart with different books? It could be for the over/under as well.