My best bet is SJ/LAA UND115.5.
Base on raw stats for the whole season, this number was a bit high - I made the total 111. There are several other factors that will push this down. First, teams are adapting to the increased flexibility of the Jack Linebacker. For the first few weeks, defenses were scoring 5.5 points per game. This has come down substantially - closer to 3/game for the last 4 weeks - you are seeing fewer defensive TDs on passes near the line of scrimmage.
A second thing I expect to lower the scoring is LAA's QB. They have been flip-flopping between Hicks and Cumbie. Between the two, Hicks is better. If they use both, it drops the total two points. If the use just Cumbie, it lowers the game total 4 points.
Third, LAA has hired a new offensive line and FB coach. I expect new blocking schemes and/or personnel. With this, I anticipate more problems the first week it is implemented.
This line is off - it should be about 104, so I'll call this a best bet on the Under down to 112.