Your on a roll mate. Agree with all the races to throw out the window, but would add all 'fillies and mares' races, all 3 yr. old fillies before January and all mares races [they take it in turns] and any race below 1100m.

Throw out any horse that hasn't won for a year or started within 21 days and ignore any horse that is more that 5yrs old except for 6yr. olds at 2000m or above at 4th or 5th up.