Veteran prop Warren Moffat was part of a front row that played a key role in Southern's win over Zingari-Richmond at Montecillo.
Moffat was strong on the burst and with the pick and go and was backed by former All Black Kees Meeuws and Ean Griffiths in the front row.
Southern did the basics efficiently and locks Sam Gavigan and James Stevenson supplied clean ball from the lineout.
No 8 Sam Crompton was dangerous with the ball and was able to breach the advantage line.
Fullback Hamish Buick was effective on the counterattack and new Otago signing Joe Hill showed some deft touches at centre and used his speed to score a try.
He created opportunities for flying winger Greg Zampach, who scored a hat trick of tries.
Southern led 24-0 at the break, but Zingari-Richmond kept up an aggressive defence in the second spell with captain and No 8 Chris Bell leading the way.
Lock Brady Carmichael had a strong game and halfback Troy England and fullback Nathan Napier were the best of the backs.
Southern 43 (Greg Zampach 3, Hamish Buick, Joe Hill, Sam Crompton, Ean Griffiths tries; Lewis Hancock 4 conversions), Zingari-Richmond 5 (Steven Bird try).
Halftime: Southern 24-0.
Referee: Ben O'Keefe.
