I bet with NSW TAB. I think the difference between the TABs isn't too great, except for the NSW TAB with very short Place divvies because of their method of calculating the dividends. The NSW TAB take-out is marginally higher than Unitab which can adversely affect the very short divvies.

I'm not a real fan of your staking plan. Yes, it will have a higher Place profit than 1 unit, in fact fourfold, but only if the method is showing a profit at level stakes. However, if the method is showing a loss at level stakes, then the loss will be fourfold.

However, if Place betting is providing a profit I would prefer your staking plan because if the Win component shows a loss for a particular day, then the Place bet could give an overall profit for that day.