@psephomancy sorry for tangent, I won't continue discussion here on this.

But quickly: you're first person to emphasize this. "Choose any" only makes sense in contrast to "choose one". I suppose indeed totally out-of-context it could be misinterpreted, and your point is valid, and it does make me less totally confident about the label. Thanks

The first two voters fail to use the endpoints of the range available to them. Do you expect such behavior in political elections that matter? I think comparisons of voting systems based on hypothetical examples should begin with the voters' valuations of the possibilities normalized. I don't know that it's worth studying examples where voters voluntarily give up power. We as students of these systems need all the time and attention we can put on cases where the purpose of the election is to resolve strong political disagreement among the voters. We need elections to work well when the voters are struggling for political power. Such voters would use the endpoints of the range unless they are not properly informed as to how the system works.