Read some interesting things recently about slot paybacks. I thought I'd bring it up again here and see what other forum members read into it. I understand that Nevada has some fairly rigid rules regarding the altering of paybacks but have never actually been pointed at the actual wording of the rules themselves. There was mention of the 4 minute timer but a number of times people have mentioned that the machine has to display an obvious indicator that the payback has changed to an end user, but some of the following throws that into question. http://media.igt.com/Marketing/PromotionalLiterature/DynamiX/IGT_DynamiX_WHITEPAPER_Flexibility-.pdf "Change payouts: Make slots looser on slower nights and tighter on holiday weekends." This implies not just that payous for different days can be coded, but also time of day as well. http://www.ballytech.com/Uploads/SideLinks/AddSideLink/PDF/Command%20Center%20FAQ_English_1-2013.pdf "The system and game operating system have the intelligence to hold a job sent to the machine if someone is playing. The machine will make the change only after the regulatory criteria have been met. In most jurisdictions, this is zero credits plus four minutes of game idle time at zero credits. At that time, the game will make the change and notify the system when the change takes place." This part seems to indicate that the machine simply needs a criteria based period of time being idle and will change over the payback as soon as that timeframe of no play has occured. At this point, I'm really curious if some of the old addages remain true about slot paybacks. Paperwork for alterations could well be automated at this point and though obviously the technical capability of doing this kind of thing is trivial, it would also appear that practical application is as well. It seems to me that the slot tin foil hats may well be correct that a machine could switch from hot to cold albeit not during a particular individuals play session. You could come back 20 minutes later to see someone doing very well on a machine that was eating you alive and it wouldn't necessarily just be the random number generator thumbing it's nose at you.