There are some Handifast factors that seem insignificant in their predictive value. So I am going to overhaul a few. Not sure yet what I will be replacing with, but the factors due to bite the dust are, Dirt, Mud, Turf ratings. Carroll speed may go by the wayside too, if I find an alternative speed figure I like that performs better.
Quite a while away from getting job done as I am investigating factors right now.
Handi