These guys who make flashy videos with coked up talk and those with flashy websites claiming crazy winning % are all scammers. Real investors know that winning % means nothing when it comes to your portfolio without the odds or the type of money management used.
The real investment minded services never tout winning %, they instead talk ROI, odds, yield etc and they don't do flashy websites or crazy promotions because once they get their clients, those clients will always stay with them when they make profit. The scammers on the other hand need new suckers every week or month because they cannot build a long term client base with lies, so they come up with all sort of lies to get new suckers. The sad part is the new suckers always fall for scams than actual investment minded sports services because the latter keeps a low profile and don't go out of the way to promote their product. Good example, is bettingresource.com, if you take a look at the web layout or site, it looks out dated and old but they one of the most profitable services around that keeps archives of all picks.