I don't know Tynan, but I do know several professional gamblers who make a great living here in Las Vegas and online.
Yes it is the small few, but that it because although there are huge mathematical advantages pros can take advantage of it doesn't mean their human nature of not following the plan will kick in. That is the main reason even the savant math wiz can't successfully win over time. The one's I know and have met who net millions a year gambling are the ones who can stick to a mathematical plan no matter what happens.
There is also a sports betting website which uses insane mathematical strategy, but hides it from its members so they simply can't make the wrong choice and are forced to stick to the plan. I have heard of several big money making pros flocking to http://www.sportshedgemillionaire.com because they are making big money consistently with this methodology.