If I'm completely in charge of running a contest (which I am not), I will make each and every contest to be as fair as possible for every participant! How to implement that? Simple - I would preselect 1, 2 or 3 games from one provider for each contest (different month different provider), then run the contest on just the named games. No other games allowed! A contest at any casino DO NOT allow you to play any game that you want does it? It tells you which game to play and only those games can be played - so every participant gets the same chance at winning, FAIRLY and SQUARELY! If anyone doesn't like this kind of strict contest rules, no one is forcing anyone to participate! If everyone prefers complete freedom of choice in the games they want to play, then there shouldn't be any game restrictions at all - play whichever game you want, as you want, anytime you want! I would also BAN LAST DAY ENTRY of screenshots for any contest - the 1st screenshot submitted for any contest MUST NOT BE ON THE VERY LAST DAY!

The players casino gamelog for their entry would show spins for multiple slots if they were playing 4 on autospin etc unless they made efforts to hide it   ie on this wildz gamelog its clear rounds for both cherrypop and reactoons were spun as the same second

Limiting the number of active slots would be impossible to enforce. How would we know? It's not a special feature in select casinos - it's only that some have it readily buildt in. You can open multiple windows and play as many simultaneously in the same casino as your pc can handle. Not every provider though, like Push for example. I agree multitabling is a huge edge for getting the spins in, like it should be in what is pretty much a wagering contest. I don't mind ZvH, I like to play it too. But I like variation also 😊

Why are we advocating to ban stuff?  If anyone thinks zeus vs hades is an advantage then you guys should play it too. If one person has the patience to sit through 4-5 or more hours on one slot and get those hits then you guys should try it too. All of us have some advantages. Few people have a huge bankroll, some have low betsize in their favor and some get extended bonuses.  The only way to make this fair is everyone makes a deposit of €50 with 100% bonus, plays the same slot on the same bet size and at the same casino or same rtp version. Apart from this no way to make this fair. 

What I mean is this kind of thing, it's a huge edge to play this way if you have a high balance and you would be playing 4x as many spins an hour than others on a casino that does not allow it.