For RC in the same conditions, the wash times were considerably shorter and NONE of the samples have browned even though they failed both tests. This is what is confusing to me at this time. In addition, I ran the same tests with TF-4 and the shorter wash times were fully verified and it passed all tests. TF-4 processed prints wash incredibly fast!
So, IMHO, the tests can fool you with RC. I'm still debating this with myself.