Fellas - I wrote this up along w/ an e-mail I sent out a few weeks back related to another game that had a total of 37:
In games where the total is lined between 34 and 39 (all games played where the total was equal to or between those numbers), the final score which was landed on more than any other was 37. Both teams combined to score 37 points roughly 4.9% of the time. Now you may look at that number and consider it to be small. However, think of this:
Both teams combined to score 39 points 1.2% of the time
Both teams combined to score 38 points 2.6% of the time
Both teams combined to score 36 points 2.1% of the time
Both teams combined to score 35 points 2.2% of the time
Therefore, having 37 would allow you to push on a number that occurs twice as often as 38, 36, or 35.
You having 36.5 will allow you to win on 36, but you lose on 37, which is twice as valuable than 36. Therefore, I highly recommend if you at all were contemplating playing this under, you take U 37.