I'm confused Geneeral.
If you could get Boston -5 and Detroit +8, 3 points in basketball, then you should always take it. Another option would be to look to the moneyline in that instance. I don't play the number in NBA, ML only. I have a hard enough time figuring out who will win, let alone if some guy will hit a meanigless free throw (or in 76ers game, if they called the foul with 0.3 secinds left)
If you could get NE -6 and Dallas +8, bet the whole freaking bank. Get a middle 7, tie on 6 and 8, hell pay for both half pointds and get a 3 point win. I've never seen 3 points on NFL. Same point, look to the ML if you see a 6 v 8 spread.
The alternate you have to the middle, is to load the side you believe to be the correct line and count on your handicapping prowess (i.e. if you handicap the NBA game at 5, just bet the +8, or if the NFL game is -8 in your eyes (In your eyes, I feel the heat, iN your , I am complete, sorry Peter Gabriel Flashback) then load up on the -6.
Best of luck in all you do.
5 by 5
5 by 5