Early NFL lines often start off shaky—for example, a spread opening at -3 can...

https://zanessmartcolumn.brightsora.com/posts/how-do-i-know-when-i-missed-the-best-number

Early NFL lines often start off shaky—for example, a spread opening at -3 can quickly jump to -4.5 as public bets pour in. Jumping in too soon means you’re probably paying extra juice