Let's separate what is real or has happened, and what is still opinion and speculation....as I stated before, I lauded carcounter's observation concerning the extreme swings in the server based games at CET casinos in AC, whereby there are long extended periods (often over days at a time) where you get nothing and when you look and ask around you notice the other VP players experiencing the same. Then will come a day, maybe two days where you seemingly hit an unusually HIGH number of good hands....this is an established FACT that anyone who has played frequently in AC at CET properties particularly since 2013 (but even somewhat before then too) knows to be true. It also goes without saying that most players do not win as much during the brief "UP" periods as they lose during the extended "DOWN" periods, but of course you will find exceptions as always. So how do we explain this fact of frequent extreme swings in performance across all VP machines at these server based casinos? This next part is where personal opinion and individual reasoning/deduction currently outweighs actual fact(s) but I believe logic and common sense will yield some pretty strong indications of what is going on, short of the CET casinos issuing a statement/confession or allowing open house access to everything and everyone involved in their VP operations.....Again, this is MY OWN PERSONAL CONCLUSION (thus far based upon what I've seen, heard and learned over the past 9 plus years in AC and interacting, or trying to anyway, with the NJ Casino/Gaming Commission)....
You are correct, Paytables are a complete open book, and aside from CET having horrible paytables in general (with a few high credit value exceptions) there is nothing going on with them......and you are correct, the RNG is not at issue either, except for the fact the server has a "chip" that is far more powerful and larger than the older ones that inhabit a typical single stand alone game unit. This means the potential number and pool of random numbers from which the games draw is potentially much larger....
But there is another part, or aspect, to the average Video Poker Game that you completely overlook or fail to account for, and that is the actual PROGRAM that runs and displays the actual game play and results! Each game (wheter it's JOB, DDB, Deuces or whatever) has its own program to allow actual game play. This program accesses the "sacrosanct" random numbers generated by the CHIP and turns it into an actual gameplay result (displays the cards and calculates the win or loss etc.) Here, within or alongside the actual game programs is where the casino can (if it so desires, which technically it is not supposed to) instruct the programs to generate more (or less) game results that favor either the player or house depending on what the casino wants to do at that period in time. This is a simple process that probably involves some type of user defined code or table into which the casino can input whatever value or data it needs to serve its purpose....a server allows you to manage your system at the most subtle, minute level of detail so it's entirely possible such a thing can occur.
Furthermore, as I have established regarding the manner and level of actual oversight that the NJ Casino/Gaming Commission is both willing and able to exercise, I believe their is some sort of collusion going on whereby the NJ Comm looks the other way regarding certain practices, so long as the Big picture stays where it should (i.e. the State gets what it is supposed to get and the figures for giving back to the gaming public are where they need to be at the end of each fiscal year.) The massive downsizing and elimination of much of the NJ Casino Gaming Commission over the past five years is a stunning coincidence, plus when one attempts to interact with the actual commission (as I have done at least several times over the past 5-6 years, one is stunned by the non-chalant, almost unprofessional manner in which agents and/or personnel speak to you, and they most certainly lack fundamental knowledge or understanding about many of the games they are supposed to be overseeing!!! This was NOT always the case, particularly prior to 2011 when every AC casino had its own dedicated booth staffed with NJ Gaming Agents 24/7!!!
Bottom line, and this is why I now play VERY LITTLE in AC (just as everyone implored me from long ago), something is way way off with regards VP statistical results in AC Casinos, particularly these CET server based casinos.....and it has been that way for a long long time, consistently, without change, and it has nothing to do with variance or even rotten luck. Those of you who have or continue to play LOTS of VP in AC, particularly at the CET casinos, you know exactly what I am talking about. The "down" periods, or "cold" spells just don't feel normal or correct. for too long a time and too frequent an occurrence.