From my experience and research is not like dogs +5 will cover the spread just because of the number 5. But i found that for the NFL when the spread is between -3.5 and -6.5 is all about line shopping (like any other game but more on this circumstances). The spread will fluctuate during the week up and down between this range and based on the number you get that will probably make the difference on a few games causing a huge difference on the long run. For this particular game the line opened at -6.5 and went down all the way to -5, so not necessarily all GB backers lost, neither all DAL backers won, is all about getting the best number.
You can do some research and confirm the line movements on this range. I do remember a couple of SF games and the same thing happened during this season, (I guess against PHI and KC). Where the game was decided by 5 and line shoppers won.
From my experience and research is not like dogs +5 will cover the spread just because of the number 5. But i found that for the NFL when the spread is between -3.5 and -6.5 is all about line shopping (like any other game but more on this circumstances). The spread will fluctuate during the week up and down between this range and based on the number you get that will probably make the difference on a few games causing a huge difference on the long run. For this particular game the line opened at -6.5 and went down all the way to -5, so not necessarily all GB backers lost, neither all DAL backers won, is all about getting the best number.
You can do some research and confirm the line movements on this range. I do remember a couple of SF games and the same thing happened during this season, (I guess against PHI and KC). Where the game was decided by 5 and line shoppers won.