The long term SR of the 100ptr winning if its also the top Radio TAB selection is

33% with a LOT of -15% using UniTAB prices.

If its the Fav & Radio Tipsters top selection
the SR is approx 38%
With a -10% LOT uniTAB prices.

This would be greatly improved on if using Betfair prices.

Its very difficult to show a profit at level stakes with that idea but at least you wont loose much.

If you wont a low risk staking plan for chasing Favs then use the.
6 Block Staking Plan
Its headed up as such on this site.
Its very good on the right selections.

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Cheers.