Mr King you should clarify what test you were doing and did not point this out in the first thread. I have done many crawlspaces. You started out with the mention of 20 t0 25% of what? If it was the wood you should have clarified this in the post if it is under the vapor you would be wrong.
Who is really at fault when a six year old house has crawlspace floor system moisture ranging from 20 to 25 percent with heavy fungi growth. Assume the problem started developing when the house was new. The ground was covered with vapor barrier over about 40 percent of the area.