Basically if you looked back in the chart and drawn in your bases, and the drawn in your safe circles (where you would have bought) then you can calculate your odds of success... after you do that you will know how safe this next circle will be.. as an example if you would have a had a profitable trade 9 times out of the last ten base cracks/panic dives.. then your next safety circle has a 90% chance of success.. thats a pretty safe circle..