Those phone blowers have to be avoided like the plague, they usually cost $10,000, they usually say that it follows the smart money , I wish it was that simple.
The mear fact that they change their spots when you try to avoid them has to be a massive warning to start with .
They may say there is a money back guarantee , but try & get it back without going to court.
If you are going to have a free trial , make sure you have your radio on to listen to that particular race , there will be discrepancies.

You have been politely warned.

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Cheers.