When I take Dog +2.5, it goes 2:2 to 5:2 in the 3rd. When I take Fav -2.5 it goes 4:0 to 5:3 in the 3rd(Tampa today). And when I take -1.5 they usually cover -2.5 if they do win(Carolina, Montreal today), that's why I started taking -2.5 and have yet to win one such bet.