Somebody else may be able to confirm this but my understanding is that JQ A320s have less grunt than Air NZs and will have some problems operating off Rwy 34 at Wellington. They also are restricted at Queenstown and Rotorua so JQ has significant problems with entry to NZ domestic IF this is true?
Wouldn't be a problem at domestic weights. Rotorua is a potential problem but about to have the runway extended there.