It would be interesting to know what kind of money is necessary to make a line move for a particular book, especially on a quarter. It might be less than people think.
I moved a line last nite in tennis at my book, not sure if its the same for football, but right after I hit it, it went up a point(-199 to -200), and that was only a dime play......so not sure if its the same for other sports or different.....