Since Den. opened at -6.5, and Manning has broke all those records. the opening line really makes me want to like Den. Therefore, I played NE +5.5. (Bought a 1/2).
SF opened at +3.5. Were in the SB last year. Looks like the 1/2 is to entice me to play SF, so I played Seattle -2.5. (Bought the 1/2)
If NE hits in the first one, going to roll winnings over onto Seat. despite what the line is at game time, essentially booking my own 2 team parley at better paying odds.
Good Luck