From the Gamemaster:
Hello, Bryan.
I played 100 spins there in the play-money mode and did have a *few* winners, all of which were credited correctly. I didn't have any problems with a winning spin not being paid, such as you did. That said, in my $500 of action, I lost $156, which implies that the machine is set to return about 70%. I'll be the first to admit that my sample is very small, so that could be a meaningless statistic. but if you look at the pay schedule for the slot, you can understand why the payout may be that low.
What I noticed is that the minimum pay is 40 credits - in fact, almost all of the payouts are 40 credits - and that leaves the casino with very few options, in my opinion. Basically, it boils down to "40 credits or nothing", so it's easy to run into significant dry spells, which is why people are reporting very few winning spins in their sessions. Rather than trying to seduce the player with frequent, small wins or "pushes", these guys have taken the sledge-hammer approach: the punter either wins big or loses big. I can imagine they set this game up, ran some trials and found that a few players would really hit it big and, gasp!, "we can't have that in a casino", so rather than reducing some of the payouts to say, 5 or 10, it was easier to reduce the overall frequency of winning spins, thus ending up with what we call a "Hoover slot", with all the implications of a device that will suck your $$$ up. That's pure conjecture on my part, of course, but let's be realistic: this is not sophisticated gaming software.
I could go on and on, but I'll spare your readers (feel free to post this, if you wish) and by shutting up now, I won't have to charge the casino a consulting fee.
I hope you are well and happy.
Bill
Yours for winning,
The GameMaster