After being the eye in the sky in a casino for 3 years, i found only one way to beat the slots....take a crowbar and beat the crap out of it till it pays! there was only one way that i ever heard of that made sence to beat the slots, it was an old tech trick that the techs used to check the payout on the machines. it was a long process and hard to keep track of! good luck!!!!!!!!!!!!