One of those Sabres has now been grounded for the moment, the one operated by the Temora Aviation Museum, that's on long term loan from the RAAF.
That's because Martin Baker in the UK have discontinued all support, including consumables, for their 'historical' ejector seats.
RAAF policy is, that jet aircraft in their fleet which have ejector seats as original equipment, must retain those seats in operational condition to remain flyable. Temora have been looking at options for fitting a more modern bang seat to the Sabre since 2015, but haven't announced any progress with this issue.
The other airworthy CAC Sabre I'm aware of, is based locally to me, and doesn't run a live bang seat. Jeff Trappett owns, and restored, that one. He's a bit of a historic warbird buff, and also has a CAC Mustang and a DC-3 in airworthy status; he's an ex RAAF and airline pilot.
Temora run live bang seats in several of their other historic jet warbirds [De Havilland Vampire, Gloster Meteor, Canberra], but they have a good enough supply of the Martin Baker consumables for those ones to get them through for quite some time. They don't run live bang seats in their pair of Cessna A-37B Dragonflys.
The closest jet low pass I've been under was a Flying Pig [F-111] at the Warbirds Over Wanaka airshow in NZ in 2006. Bloody impressive!
