playBunny: Given that it's an example of the MDU rule, isn't you saying "(or at least, according to the rules, you shouldn't be able to swap the dice)" an agreement that these moves are against the rules?

No. It's just that I can't remember ever encountering the situation I described, so I don't know for sure whether the swap dice link will work or not. All I'm saying is that the rules claim the swap dice link will not work in that situation. But the proof of the pudding is the eating.

Er, that's an example of the kind of illegal move that we are already been discussing, ie. those which go against the maximise-dice-usage rule.

Whatever. Then you tell me what's meant with the illegal moves in the rule that states the swap dice link won't work. If you're going to dismiss anything as being in another class, you tell us what it means. You seem to have a good idea...