What's great about tournament rules is that the TD gets to decide what is fair, and what isn't fair. Nobody is WRONG here.
I think it's completely reasonable for the rules of the tournament to reflect the experiences of that TD over the course of their history of running events.
There's a large group of people that feel a 1-ball multiball has the potential to be a huge advantage. If that's the case, and you're the TD, why wouldn't you have a rule against that?
Same can be said for your approach Joe. If you don't feel it's a huge advantage, then I think it's great that your rules support your opinion on the matter.
Trying to argue that someone's opinion is wrong/right about the advantages gained is where this gets off into the weeds.
Even the FSPA rules offer vague interpretations on how to handle situations:
"If a malfunction causes a player to receive an exceptionally unfair advantage over the other players, and there is no reasonable way to avoid it, then the game is stopped and a new game is started either on the same or a different machine at the SLO's discretion."
So what constitutes an exceptionally unfair advantage? Can something be very unfair but not exceptional? It clearly mentions that a one-ball multiball is not an exceptionally unfair advantage, but instead of a list of what is, you're left to having the TD simply come over and make a judgement based on??
"At theSLO's discretion, game features may be set on the new game to match the known state of the original game, subtracting any incidental points required to establish this state from the player's final score."
Again, the dredded 'TD discretion' vagueness. Game features may be set to match the known state. How does your SLO know when this should be done, and when it shouldn't? There's no trigger point in this verbiage to say YES/NO based on some obejctive criteria.
I'm not trying to pick a part the FSPA rules versus the IFPA/PAPA rules . . .all I'm trying to say is that it's OKAY for different rules to exist because of where your experiences have taken you over the years. It's why after every major event there's usually an email thread going between MHS, Polka and myself, discussing things that can be clarified in the rules based off of some new experiences that one of us had.
I happen to side with Bowen and Cayle in that 1-ball multiball play does represent the POTENTIAL for an exceptionally unfair advantage, and that's why we don't allow it in our rules. For those that don't, as long as you have it in your rules that it's not an unfair advantage, then PLAY ON at your leisure.