One day the mass figure makers will measure the moisture in the track if they do not already. A probe inserted 2, 4, 8 and 12 inches beneath the surface. The density of the surface materials will also need to be factored. Until that time it will be a matter of speculation and debate. But anyone knows that a very low humidity day with strong wind can alter a track's condition almost hourly. I garden and I have seen the surface and soil change quickly under those conditions. You've got to be very careful with subjectively altering figures however. At the same time, a track surface is more a living, evolving thing than a static mass of materials. I'm still in favor of the handicapping challenge. Let the best of theirs go up against the best here and see how the results shake out. Do it on a regular basis and I think it will become self evident who makes the better variants. A speed figure really is nothing more than the variant determined with some precision.

Tabitha