I've listened to the seminar and it sounds pretty convincing with respect to the points you were trying to make. My compliments. To play devil's advocate, however, I'd ask a couple of questions?

If moisture content is kept within a range surrounding optimal levels (I think I saw the range 6% to 9% referred to by one of your experts), how much does it really matter where you are in that range? Your expert mentioned that there was significant deterioration on either side of the range, but I didn't see any data on how much "energy return" varies within that range. This may be one of those questions that is unanswerable unless you can get some moisture content data and try to correlate it with the track variant you calculate.

One thing that your experts kept harping on was the importance of compaction and that the tires of the water truck and tractors produce significant compaction. I haven't seen anything to suggest that you take this into account in making figures, and I'm not sure how you could. Does this mean that horses who run in the tire tracks (do you know which path this might be?) consistently earn better figures than they deserve?