I would not call myself a professional ever but I have been counting cards part time since 1989 with limited success.
Australia used to have excellent conditions ie less decks, no heat and spread 1-50 without problems until a certain Andrew came along and started making appearances on prime time TV. Since then it has been all downhill with CSM's everywhere.
To my knowledge Andrew Scott is probably the only counter to have ever been banned from playing blackjack here- just to give you some idea of how little heat there is in Australia. Hundreds of counters are allowed to ply their trade/hobby?? with no fuss.
The problem is most of them do not have the bankroll to beat the house and I see them get wiped out due to overbetting. Its common to see someone play for hours waiting for a high TC only to lose their bankroll with a few big bets/doubles.
You can get shoe games in Australia but they are in the VIP rooms of casinos. To get a VIP card you must buy in for typically 5000 AUD - 10,000 AUD. Adelaide and Brisbane have 25 minimum shoe games.
One of the better VIP rooms is the Mahogany room at Crown Casino in Melbourne. It would have 20 BJ tables but they are all 50 or 100 minimum. Within the Mahogany room is another invitational only room where there are 2 tables a 200 minimum and 300 minimum.
You can do whatever you like here with 10 grand bets and the pit crew will hardly raise an eyebrow. I have seen 100K on the layout including splits and doubles and the dealer paid them out fast like it was a 10 dollar table.
An 8 deck shoe with no surrender and double 9,10,11 is not the easiest to beat but I have seen it done. You just have to be very patient and have a hundred grand cash to start with (preferably 200K-500K).
I wouldnt waste much time on it in Australia. If you have that kind of money and good counting skills a better proposition would be to fly somewhere else with more favourable rules.
Everyone I know who has the bankroll, skills and experience to play BJ (well enough to beat the house) has no inclincation to. They put their time and energy into business enterprises and play in poker tournaments instead.
That's my take on things.