No Al I can't say I've done any technical testing or analysis besides the obvious. My plenum would get dirty with a stock paper filter and I would clean it occasionally with a sensor safe intake cleaner (usually right before an oil change). When I had the K&N installed I'd "guesstimate" that it was about twice as dirty. Don't get me wrong the intake will get dirty but this was considerably more. It would only make sense that if the cotton/gauze filter is increasing the amount air flow it's also going to increase , to a point, the amount of dirt entering the system. As I said this isn't based on any analysis but just my observations of the condition of my air intake. I apologize if I was misleading in my experience with the filter.
On another note I'll get the second chart and pic to you tomorrow night !!