I'll clarify a little. Firstly, I probably have a maximum of 6 bets per week. When I apply my method to race fields it does not include the course/distance factor at all.

When I check my results I constantly look for statistical trends that can perhaps be applied in addition to my method. Of the horses that I have (successfully) backed, the course/distance consideration was not an important issue.

In the overall scheme of things (according to all my analyses) the C/D factor was in the 80% rather than the 20%.