I base my statement on well known studies by many different labs funded by the Nevada gaming commission.
gaming towers are not equal. There are designs that do not adequately randomize the path the dice must take while falling through the tower. A series of the ramp baffles should be at lest 3 ramps with the orientation shifting on multiple planes.
https://www.smartcraps.com/SmartCraps_theory.pd
https://cspages.ucalgary.ca/~cwill/papers/2021/Craps-PER.pdf
https://www.scribd.com/document/499006991/Cheat-Moves
Interesting stuff!
However I think the described cheating methods at best partially apply to our ASL tournament situation:
First of all, the situations described in the linked papers refer to situations in which someone is
actively trying to cheat or to manipulate the dice, for example holding the dice close together and rolling them in a way that lessens the probability of their turning about one of the three axes, making certain outcomes more probable than others.
I think it is safe to assume that ASL players using non-precision dice (or precision dice for that matter) are
not actively trying to cheat. And if they were, they could apply some of the methods described in the papers both on precision and non-precision dice.
Regarding dice towers, there might be some (this is personal guesswork) that might be more suspectible to dice sliding down the slopes inside rather than rolling - maybe acryl-material types. If you combine such a "sliding rather than rolling" dice tower with the method of entering the dice in a way that reduces movement around one of the three axes, then you
might, just might bring about some changes in the outcome that could be statistically relevant.
However, do you think if you use this method ("sliding tower" & reducing one axis rotation), that there would be any difference between cheating with normal dice and precision dice this way?
My bet is, that the difference of outcomes between precision dice and normal dice when using this way of cheating is irrelevant in game terms. If there is relevance, this would be caused by the cheating, not the difference of the types of dice.
Now if the Arnhem tournament rules would want to prevent / make harder a cheating method of diceroll manipulating techniques, then they should ban certain types of dice towers (the potential "dice-sliding" variants). This the rules notably do not do apart from requiring "silent" versions (which might eliminate the acryl-types at best as a side effect). Dice-throwing methods could better be eliminated by using leather cups rather than dice towers, I reckon.
Yet, we have to remember, that the main argument is about requiring precision dice.
And the papers you link note that you have to be a
skilled dice controller for relevant effects. Which we have to reasonably assume is simply not there in our ASL tournament situation. And even if so, that skill will be at least partly negated by the use of any dice tower, or even completely by dice cups, leaving already nothing relevant to worry about. But on top of that and more importantly, can a skilled dice controller better/less control precision dice than normal dice?
With all due respect, but I have my doubts about that.
von Marwitz