The tournament is being used as a trial for three new rules to be considered for professional netball.
A second shooting circle will be mapped out at 3.5m, with goals shot from there counting as two points.
Other rule changes include the centre requiring only one foot, not both, in the centre circle for the pass, and a decrease in injury time to 30 seconds in a bid to stop tactical injury times being called.
Six teams, featuring numerous members of ANZ Championship squads, will compete in the under-23 competition.
Waikato-Bay of Plenty looks a good bet to retain the title with six players from the Magic, the only New Zealand team to make the transtasman finals.
Jo Trip, Katherine Coffin and Jamie-Lee Price will hold up the defensive end, Samantha Sinclair will run the midcourt, and Brooke Leaver and Malia Paseka will handle shooting duties.
The Mainland team also features experience down the court in the form of Tactix players Nicola Mackle, Sophia Fenwick and Zoe Walker.
The home team, South, will be looking to knock Waikato-Bay of Plenty off its perch and certainly has the team to do it.
With five Steel representatives and some of the Dunedin premier grade's top players, the South side will be a force to be reckoned with at home.
Te Paea Selby-Rickit is likely to play under the net, and the long-range ability of Olivia Bates could lead to plenty of two-pointers. Kristin Craig and Bridget Thayer will provide more options in the shooting end.
Phoenix Karaka and Storm Purvis are likely to be the No1 defensive combination, supported by Rebecca Purvis and the physical Libby Drake.
South coach Reinga Te Huia has a number of options in the midcourt, with Steel players Gina Crampton and Stacey Peeters likely starting options. Miaana Walden or Sophie Napper will accompany them.
It will, however, have stiff competition from the other 18 teams competing.
Dunedin will battle it out in pool D with Eastern Waikato, Tasman and Howick Pakuranga.
The Dunedin team features some impressive youngsters from the premier club competition, along with St Hilda's Collegiate and Columba College players.
Danielle Gray and Samara Hollows will form a strong and explosive defensive end, and Georgie McFarlane will pair nicely with Rosa Edwards on attack.
Jamie Hume will be a tall target for Dunedin feeders and holds well under the post, although the introduction of the two-point goal may affect the team's tactics.
Both tournaments begin pool play on Monday at 9am and the finals are on Thursday.
- Bridget Rutherford.
