Hi Chrome,
You may like to check out Fairbot.

Just been up dated.
It now has a very user friendly, one click button to keep the bet alive for UK racing & it is very economical to run.

Bet Trader Pro is good, but it sure sucks up the juice

I have been using Fairbot & its brilliant.
You can close ones whole system down if one wishes to & it will keep the bet alive for in running prices to match up.

One can even cancell the unmatched bet while in running as well.

Cheers.

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Cheers.