a valid question Mike
if all hives had low mite counts then the study wouldn't seem to tell much
the results look discouraging for SC, but you have to ask "why do they disagree with the experiences that people using SC have had?"
perhaps the ultimate data we want is survivability, not mite counts
just a thought
I have no experience with "life sciences" type experiments but it seems to me that with so many variables in play it's really the end results that count