Currently I am just over 40% through the 15x WR of my $50 bonus, and what I have been doing is playing exactly 50 spins* at $0.01 per line on all 30 of the slot games ($0.20 bets on every game except $0.25 on Fruit Frenzy).
Here's my game log so far:
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* I goofed on one game and accidentally played 51 spins because I was deep in thought, so I compensated by playing 49 spins on the next game.
The early 50x win on Diamond Dozen was this:
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The biggest win of the session so far was on Tiger Treasures during the free spins:
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And in Prince of Sherwood I did surprisingly well - for the first time EVER I hit the 3rd ring in for a 4x multiplier, and the only noteworthy win was this one (the bottom-top-bottom-top-bottom payline, 5 jacks doubled):
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And a little later on got a very nice bonus round from Outta This World, with 20 free spins, a 100x prize which I have never seen before, and it retriggered on the very last free spin giving me a total win of $45.74:
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But as you can see, the last 650 spins (everything played after Outta This World) have been downright lousy with an overall return of 77.40%. The very few bonus rounds I got in the last 650 spins have been totally crappy, averaging $4.62 each.
I'm not allowed to play any good games (video poker or blackjack) so I might grind out some WR on Pai Gow, but my goal is to get it up to the max cashout of $500 and withdraw it; that won't happen by playing Pai Gow.
Also - I think I figured out the Goldbeard mystery. It's hard to catch, but I think as soon as you click Spin (and the next reel stop is determined), the reel "jumps" ahead to where it needs to be so that it will land on the predetermined position after 1 ~ 1.5 second(s). I watched it very carefully when I was playing my 50 spins on it, and I saw Goldbeard go by WAY too many times very close to where he had stopped. The only way that would be possible is if there were a whole bunch of 20 - 30 Goldbeard symbols clumped together, which there are NOT. So I think the reels probably ARE set up like Microgaming's, but because they spin much slower, they start out in the position that they last stopped in and then very quickly "jump" ahead - you will probably see what I mean if you try it out. Right after the reel picks up steam, it looks like there is a very quick switch that occurs. That would explain why you could go 15-20 spins without seeing Goldbeard, and why I saw him way more often than I would have if it spun 100% linearly. Also, if it didn't "jump" like this, then it appears that the first reel only moves a few symbols on each spin, which can't be the case because then that would mean that it weren't random.