Mind Mapping is a good technique when trying to come up,with a logical system or even analysing a race
I think you can correct Trainer data by a certain degree by doing so. Im focusing on sires for now as that's my main interest on the aw also i tend only to bet in class 4-7 flat so it wont help me so much.Can you run by race class that would tell you more about a stables fire power and ambition
Track - Some sires perform better on certain all weather tracks that others. Not just surface but direction and time spent running round a bend etc.