I'm backing out of two plays. I don't usually do this, but when I do, the plays I back out of usually lose. Some players back out of plays by just playing the other side for an equal amount eating the juice. I don't do that. If I backed out of the play there is a reason I like the other side and I should profit from it. So I will play the changed plays at a higher star and keep the record clean by grading a win if the higher graded play hits and a loss if lower rated play hits. I know its complicated. Or maybe it isn't
Bears +6 for 2.5 units risking 2.75 units (remember I have a unit on the other side)
Bills +3 -115 for 2.5 units risking 2.875 units
Bills and bears are the right play. Good luck!