Early NFL lines can be all over the place, like a -3 opener moving to -4.5 by...

https://www.bookmarkmaster.win/jumping-on-early-nfl-lines-like-a-3-shifting-to-4-5-can-feel-tempting-but

Early NFL lines can be all over the place, like a -3 opener moving to -4.5 by kickoff or +155 dropping to +135. Jumping in too soon often means paying more than you should