This manipuator is what USED to work before they made the alteration that created the problems with WR being carried over with fresh deposits onto a ZERO balance. MG knew about this, and fixed this "on the quiet", the only sign being a number of complaints about players zeroing out, making a fresh deposit, only to find EZBonus "remembers" a carry over of WR.
It seems MG cannot come up with a "clean" fix for this, so have left the messy one in place, even though it causes complaints. Casino CS will manually clear carried WR, but will check to see whether the carry over was due to this problem, or whether you deposited onto a non-zero balance, in which case a carry over is correct.
This is an interesting idea though, as the original "manipulator" was to play high stakes, and if the balance fell well below the bonus too quickly, make either a fresh SMALL deposit, OR redeem $10 from comps. This USED to reset the bonus balance to the CURRENT balance, wiping out WR on funds already lost. Players would then continue to play high stakes hoping for a few decent hits before busting out.
This was never anywhere near as good as doubling up on Blackjack or Roulette, and then grinding out WR, but was +EV over the long term if played strategically, and with reasonable luck (MG not being in "takedown" mode).
This brings things MG have fixed "on the quiet" to THREE (to my knowledge) over the past year or so.
Sadly, this will probably not work, and given how damn lucky you have to be to even GET a decent bonus round on an MG slot, is a tactic that would probably MAKE casinos money now that the EZBonus "bug" has been fixed.
If MG continue to fire out new games and updated lobbies at the current rate, all which seem to come with various "bugs", there are probably new "advantage" bugs awaiting discovery, which will probably hang around till they become an "issue" that gets bumped up the priority ladder for fixing. Bear in mind that bugs that do NOT affect the casino's revenue NEVER get fixed. Some of these bugs have been around for over THREE YEARS (THunderstruck "-1 free spins" bug), and simply DON'T EVER get fixed, as the priority is in releasing new games.
I would suggest Tomb Raider 2 as a good prospect for "advantage bugs", as they have pioneered many features where the outcomes depend upon previous events, such as the "reel activation" bonus feature, as well as "rolling reels", where the number of lines played has a direct influence on the eventual payout because more active lines means more wins, and thus more "rolls" and multiplier upgrades.
I am already looking into their "Fruit Machines", but sad to say I have not found any REAL "Fruity methods" (yet
), just tactics, again based on the fact that these are not random, but influenced by the player's decisions both in the current feature round, and previous ones.