great iidea.
I dug up three newsletters indicating the opening Vegas line Power Sweep, Sports Reporter, PointWise:
Mia NL 6 NL (NL)
Ind NL 2 NL (NL)
TB 3.5 4 5 (32.5)
Wash 3.5 3 5.5 (38)
Tenn NL 12 NL (NL)
Det 7 7 7 (36)
NYG 3 NL (NL)
Caro 4.5 4 4.5 (36/36.5)
NO 7 7 6.5 (45)
StL 11.5 12 11.5 (49)
Oak 9 7 7.5 (44)
Sea 3 3 3 (42.5)
Jax 3 3 3 (37)
Pitt 6.5 7 6.5 (34)
Balt 6 6 6 (38.5/39)
Some huge swings on the Det, Caro, and Jax games.