On the 2nd of October I wrote:
So the last six polls, all from different firms, have had ACT ahead of Opportunity by margins ranging from 1% to 6%, and the Herald-MOTU poll of polls says that the poll of polls means Opportunity is ahead of ACT.
On the 8th of October the Herald did an explainer, and have made some changes. Much of their explanation has nothing to do with why they had Opportunity above ACT, when every single pollster had them 1% to 6% behind. But there were some nuggets of useful info:

















