Extreme sailors not giving away any Team New Zealand America's Cup protocol secrets

To multihull or to monohull - it's the biggest question in sailing right now as Team New Zealand prepares to announce protocol for the next America's Cup in Auckland.

Winning Cup cyclor, Josh Junior, and wing co-ordinator, Rob Salthouse, aren't giving anything away as they vie for victory at the Extreme Sailing Series in Wales.

A decision on the Cup's future will be made in early September.

Watch the video above for the full story.