hmm, that single hole would probably cause a similar effect to a ported sub enclosure
i havent got my hands on it yet, but is the deadening mat sticky on one side or do you use spray on glue?? it seems to conform to the door well. oh, what type of matting is that? its not the one from jaycar (brownbread? i'm looking at it too dru
, havent got huge wads of cash to throw at this).