Early NFL lines often shift a full point or more as sharp money rolls in—like a...

https://casinocrowd.com/is-it-dumb-to-bet-a-line-after-it-moves-from-3-to-4-5/

Early NFL lines often shift a full point or more as sharp money rolls in—like a -3 opener moving to -4.5 at close. Jumping in too soon means you might pay up unnecessarily