In general how much has to be wagered on a game for the book to move the line? A friend and I often play the same game and the line seems to adjust in their favor shortly after one of us puts in a play. I would have thought it would need to be alot of money wagered to change the line, and we are not big players. Our average wager is $100. It seems to happen alot more than you would think for such small #'s...any thoughts?