I have been to Wendover a few times since last week, and the water is drying quickly. I have daily reports from the salt when I am not able to get over there from my crew, and they are thinking it is going to be good for World Finals. I may have to head over tomorrow, I'll get some pictures so that we can all form our own opinions. It has been clear and windy today, but not warm. If it keeps it up, the salt will be good.
My guess on the clay under the salt, although the water does not percolate well, it moves the water to the low spots. This is the pressure ridge effect on the salt. On the surface where we see a ridge, water is under it, or at least was at one point.
For what it's worth...
John Levie