Well, its all about getting best price is it not?
NZ TAB set pretty shit odds as we know, but many times i get overs with them on grass track harness meetings. Beteasy just mirror nz fixed odds a few hours before first race, so on many occasions i might multi up on nz harness fixed odds with aussie racing, both tote and fixed odds, works fine. Especially as you can mix up ew, win or place, just gives you more options. TAB is just not competing, they are miles away with what punters want.
I am surprised with all the advice about getting best prices etc by the experts on here, nobody has said, bet less with the tab as you can. Take up promos with other agencies, it will help you greatly, and if you bet on aus racing and sports, just use betfair, no need for complicated systems etc