You may not able to use that successfully. Others can make it work but they think differently to the way you would and that's ok. There are thousands of ways to make money on the horses. Identifying the chances based on "safety factors" is one of the main ways I make a profit.

As I said most people are not safe enough and do not include enough safety factors.

One of the difficulties is understanding how to back test those factors. As I have said before 99% of people can't do that properly and therefore adding safety factors is just extra back fitting and that does not work.