<then a RECAF test is utterly worthless for up to 20% of the general population>
Wow!!!! Thus, you are saying that a RECAF test can BENEFIT 80% of the GENERAL POPULATION. That 8 out of 10 people on this planet can benefit from getting a RECAF test? That is phenomenal!
Let me see, there are about 7 billion people (not counting the dogs), which means that you think that 5.6 billion could benefit from a RECAF test. Again, Wow and thank you Gold Seeker for making us see this potential.