The predominant impression I've gained from here and elsewhere is that no poster has actually managed to figure how to gain anything useful from this tool.

Frankly I don't believe this is entirely the tool's fault.

Why has no one else bothered investigating the historical data it provides?

By my rough calculations, for the 176 races from Saturday to Tuesday, Betfair beat all the 3 TABs 70 times.

That is for 40% of races the winner paid best on Betfair.

As opposed to the expected 25% if there was no advantage between the 4.

In other words Betfair won 60% more than its fair share.

Makes me wonder about those who claim that "overs" rarely win on Betfair. Could the fabled prism of self-interest be clouding their views?

Feel free to run your own tests.