I don't really understand how this proves scentlok doesn't work. The dog is trailing where the person walked while he was wearing rubber boots. Seems to me it proves that wearing rubber boots does not cover your scent like people thought. Please explain how this proves scentlok doesn't work. This is not a discussion about wether or not scentlok works. I simply want some to explain how the bloodhound test proves that it doesn't work.