I have never heard that before, but that certainly doesnt make your point invalid. Its that kind of emperical data we need for such a discussion.

So if the particle bounces off you have completed the first task of a filter, blocking. The question now is capture. Does that particle pass thru or jam a hole? Which boils down to particle size vs filter opening size. I am assuming Green mentions 5 micron filtering as a marketing tool against K&N because K&N apparently refuses to make such a statement?

I like the handle "BigSwede", its the exact same handle my father uses on the CB. I guess that would make me "SwedeSon"?