Betting early on NFL games can be tricky—lines often move a full half-point or...

https://wiki-nest.win/index.php/Why_Does_%2B155_vs_%2B135_Matter_on_a_Moneyline%3F

Betting early on NFL games can be tricky—lines often move a full half-point or more, like opening at -3 then closing at -4.5. That extra half-point might cost you the bet. Patience pays off here; waiting for the close gives sharper prices and better value