Did you not read any of the math i posted above? You only lay a bet if you cant cover the hit if it goes one way or another. The only bets that layoff on a regular basis, is numbers and teaser/parlay bets. It is common to see layoff s on money lines... Im not saying bookies dont lay off ever, but the good ones try and limit how much they do... And usually only if their small, inexperienced, or overexposed.... Or a combination of all three. Dont take this the wrong way or anything man, but your looking at more of the Theory of bookmaking. Just look at the math i did in my above comment, it shows that laying off is impractical today... Like i said, books will only lay if they are really REALLY exposed... 10-15% differential on either side, thats all good, in fact very common and where most wager tallys end up.