You serious ?
If it was guaranteed we would all be millionaires...
You may win.. say $10k... then go again.. win another $10k... then go again and lose it all...
Do not do it... its silly.. unless you have unlimited bank roll, which I am guessing you don't.
If you just want to have a bit of fun give it a go, but if you win. stop.... i repeat.. stop!
is it really worth the try. i'm curious about it and want to try it on freebitco.in. I also found a script online.