Quite how National's cosy relationship with the Act "No legal privilege for Maori" Party sits with Maori voters is not clear.
Meanwhile, on the left, the machinations of MMP are set for a good workout.
A win for Internet Mana's Annette Sykes, knocking out Mr Flavell, could do major damage to National's prospects.
Would this be enough to tempt Labour voters to think outside the tick box?
Labour candidate Rawiri Waititi has made it clear this is not an option.
"We just want to quash any speculation out there that we have put any support behind Annette Sykes," he said.
Clearly, though, at the 2011 election, at which Labour took 35 per cent of the party vote but just 24 per cent of the electorate vote, votes were being split between parties.
Waiariki voters are no strangers to strategic voting and that alone could make this electorate race one of the most fascinating in the country.