not so hard
 

to tell you the truth ,,,,its easy to get around the problem and thats dont bet with the pricks,,,,there is lots of other options,,cheers,,gazman....

Take out on First Fours (NSW TAB) is 22.5% and on Pick the Margins(NSW FOOTYTAB) it is a whopping 25%. It is very hard to beat an edge of this significance. Quadrellas should pay a lot more than an allup because the pool is only getting taxed once (20%). A four-way all up will be taxed four times on each win bet (15% or close to). Remember a runner that pays $4.0 for a win is really about a $5 or 20% win chance. So an all up with four $4 chances should pay $625 ($5x$5x$5x$5) not $256 ($4x$4x$4x$4) according to "true" odds. Hence quadrella dividends should pay about twice the all up as a general rule of thumb.

Cheers
ATC

Here's an interesting page:
http://www.betting-ring.com/australia.html

I think it's probably way out of date by now but it shows something that I didn't know and that is that various TABs charge different commissions on the same bets. Quinella varying from 14.25 at NSWTAB to 20% at WA Tab and even more at the NZTab according to this article.

KV