I suspect HHs 96% pay rise since 2006 is the result of promotion/promotions so not really relevant. Anthill, DECs are great for those who have the experience and/or the correct coloured shirt from a previous life hanging in the closet, but realistically DECs on Jets in Oz are like rocking horse poo.
I don't think there will ever be a pilot shortage in Oz because most realise there is a good reason why they pay so well overseas, and it's not because of the clean air or wide open spaces.