Hi JetFO,
The A343 was a problem from day one in EY, it was an ex-SIA aircraft which was in really bad nick and all it did is burn a lot of fuel and create a ton of problems. Range was absolutely useless, and all said and done it was a serious liability.
As far as A320 rosters mate, I'm afraid I can't help you there, as my handle suggests I'm not on the A320 but I understand they do all turnarounds with the exception of one or two destinations with layovers. However having said that we have a CCQ A320 to A330 so you can plan on being rated on both after about a year.
Cheers
EY346