Early NFL lines often start shaky—like a -3 opener sliding to -4.5 by...

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

Early NFL lines often start shaky—like a -3 opener sliding to -4.5 by kickoff—because books adjust to early bets and info flow. Rushing in means paying too much or missing value