Well I tried today to look outside the circle and inside it as well.

I looked at meetings on 2ky that had at least 3 tipsters. I then recorded the return of horses tipped vs horses not tipped and also those tipped in each position.

I only have 7 days data but in that I found a method to monitor. It had a profit of 164 units over 223 bets and was very consistent in returns.

I don't think its as much about looking inside or outside the circle as it is in actually doing the research and working out what the results say.