I have been looking at signing up at Mansion and Matchbook and still have a few questions. Am I missing something but shouldn't you get the best line on almost EVERY game on these exchanges, unless the public is all over 1 team. They will never bar you or limit you if they think you are scalping/middiling, will they (seems they like they wouldn't care.) Why would anybody make any offer that they couldn't get better at another book, the reason I ask this is I think I have noticed some offers out there that are worse than other books. Isn't this BY FAR the best way to scalp or even line shop at reduced juice, seems like a no brainer, Is their something I am missing, seems almost to good to be true.