The two jurisdictions in Australia that use Hare-Clark (Tasmania and the ACT) no longer have a political duopoly. MMP would probably work well in South Austral

The two jurisdictions in Australia that use Hare-Clark (Tasmania and the ACT) no longer have a political duopoly. MMP would probably work well in South Australia (where overall the electorate is fairly evenly split right-left, but many of the right-leaning voters are locked up in a few geographically large rural electorates and the left-leaning voters are distributed more evenly across more urban and suburban electorates).