I dont have a clue who you are but given the choice i would rather listen to the advice of those two "losers" than any advice that you might have to offer. Just my humble opinion.
I think that test was quite awsome showing that we dont have to be so picky about some things but i also somehow get the idea that that particular engine just may not be very sensitive to headerrestriction try the same things on a different engine and you might find bigger changes or atleast some kind of change.