@johnbishop - John - I agree with you. Is this company venturing forward with this technology? I was surprised that on the foundation for PN website, there was no mention about this. Talk about a head scratcher! So many people are not doing well because of PN both physically and mentally. I had a fall about 10 days ago, landed sideways on kitchen floor, banged my head and two days later got a spell of vertigo. Ughhh... I never stood in the middle of a merry-go-round and had the room spin around me. Doc said something in ear probably got knocked around. OK since but that is the kind of stuff that happens with PN. Wonder why the Foundation for PN isn't on this. Doesn't appear to me to be a credibility issue in light of the testing. I will make contact with someone and get back to you in a day or so.