What I trying to mean was an amount that the previous player won. When I play slot, there is always somebody else sitting besides me, either on the right, left or next row. I can see how much he/she win during the bonus games and the final result when he/she quit the game. Take RM3 bet/spin for instant, a bonus game payback at 4000 ~ 6000 credits (RM200-300) is consider an average winning to me. If it continues to payback that amount between 100-150 spins which is after RM150-200 of feeding, and the bonus pay back RM200-300, this is an average winning machine which I like most. It is not easy to meet such machines in Genting, but at least it is easier to find them in RWS.
I am not good in explanation

, in short I meant choice a machine that previous player won and walked away with few hundred RM rather than choosing a machine that the previous player lost a few hundred because it is likely that you will be the next player to continue feeding that machine.