A few years ago there was a big screen book named ASAP. They would deal -02 and -03 all the time, plus would move their #s more than anyone. One Saturday, by mistake, I middled them on 4 games. They closed shop about a week later.
The last book that made a run at lower than -105 was BigJuicyodds (-103)and we all know what happen to them. Charlie should have known better than to give those types of bonuses to a bunch of punters upon being asked.
To be honest I think -105 or -104 is the absolute limit - especially with the way things are with the exchanges now where it is so very easy to find 5 cents of value either way.
at -102 for instance, it would be far too easy for a book to get scalped either way and end up with an all red book - especialy if they are moving their lines constantly in reaction to bets one way or the other...