Two observations that bolster your point:
1.) I watched, at about 3AM one night, a casino employee open each VP/slot muliti-game, multi-denom machine along an entire bank (except the one I was playing) and manually record the data on each option on the machine. I could only see the actual numbers on the machines adjacent to me, but the VP payout % was pretty close to, but consistently below, the machine's ER for the various games, as would be expected. The slots were all in the 80-something % range.
2.) A particular machine (out of a bank of 8) that I hit for 5 W2G payouts last year in fairly limited play was changed out as of my first trip in this year. The other machines, which happen to be consecutively numbered, remained. I'm not saying that it was my 5 W2G's that caused them to swap out the machine. But if others had similar success, and that caused a significant deviation, I have no doubt that is why only one machine was changed, as opposed the a wholesale change to the whole bank.
Sniff, sniff, good-bye # 010175, my old friend.
Certainly the game is rigged. Don't let that stop you; if you don't bet, you can't win. -Lazarus Long
In theory, there is no difference between theory and practice. But, in practice, there is. -Yogi Berra
There is no such thing as luck. There is only adequate or inadequate preparation to cope with a statistical universe. -Robert Heinlein
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>Casinos keep detailed records on the win/loss of each machine which is required in most gaming jurisdictions. Depending upon the jurisdiction these records are either reviewed and/or sent to the appropriate gaming jurisdiction. Any machine that has a significant deviation from the expected win/loss is replaced.
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