Hi
Thats a great idea but after one year at trying this both with the tipsters and radio tab you would have made a loss using flat staking, you would need to use some sort of progressive staking as there are days where you do your bank a little bit without ever really coming in front.
Strike rates are;
1st 25%
2nd 16%
3rd 12%
Theses are a roughg guide of percentages for all codes of racing and also selective codes.
One staking plan could be The Power of ten, Target betting but then again you will need a large bank as it is not uncommon to have runouts as large as 30 plus which you will need nerves of steel which i dont have and i cant justify putting down a $300 to make $10
I wish it did work as easy as you say,have tried for the pass year, still working at trying to filter out the losses but it all seems to be a bit random..

Cheers