I think I can talk about this without anyone getting up in arms. It has been years since this was really a legitimate play.
So back in the day, which for me was only 10 years ago or so, the first versions of the Dealer Angel 5-seat BJ set up were very countable. It quickly became commonly known that the shuffle was at dealer change. Back in the day, I was playing half dozen or so of these machines around vegas. Slots of Fun (circus cicrus), the old Imperial Palace before it became The Link, downtown @ El Cortez and The Plaza, Terribles casino (now Silver7) and somewhere else on the lower strip. was it MGM? (that one didn't last long)
Anyway, most of these places had a minimum bet of $2 or $3 dollars and maximum of $100. A couple had max bet of $200. This made for an EV of bewteen $75 and $150 per 100 hands depending on which max bet the machine had. This wasn't a big thing for me, but I would try to hit these once a week for a session when in the area. Lots of people knew about it as I would see the same people at El Co, Slots of Fun, Lucky Club. Oh yeah, add Lucky Club in N. Vegas to the list.
So anyway with the updated models this sort of went away. The shuffle could be programmed anywhere. I suppose guys smarter than me could still figure out things that would give an advantage, but I was mostly done with this play when the newer versions or models came out. Which by the way were less realistic as far as dealer graphics if you are into that sort of thing.
So 3 months ago, while looking for something else, I stumbled upon one of these older, early version set-ups. It was a small location on the outskirts of Vegas, miles from strip or downtown. The casino didn't even have table games except for this electronic set up. So I have been hitting it 3-4 times a week for 90 minutes to 2 hours or so. And have done pretty well. Problem is I never or rarely saw anyone else playing. So I figured even trying to slow milk it as I was, it wouldn't be long before someone noticed a change in the numbers the machine was bringing in.
That happened today as they were actually in the process of removing the game when I arrived. I am trying to think if I could have milked in any slower extending the play, but really don't think I could have. What if I played 4 hours a week instead of 8ish. Maybe it last twice as long, but still the same money. Because this was such a small place and the real problem, there wasn't a lot of play (at least that I saw) I don't think anything I did would have extended it much. Anyway, it was fun while it lasted and brough back a little bit of the not so long ago, past for me. Plus I made a little money.