Mista Flava Thread may answer your question, I have noticed for years if a line moves .5 near kickoff dog or favorite it’s the correct call to go with the movement.
Line movement early on, say Sunday night(for football), and the last hour before kickoff, seem to be an indicator of where the whales are betting. Line movement during the week can be meaningful if it is a drastic movement, say 2-3 points. JMO.