Hi Danny. I've got BH5 in a pair of Paradox 3's from you; a couple of nights ago I was fooling around and added a small bit of fiberglas insulation, very loose, to the bottom (inside) of the cabinet. The effect was eye-opening: clearer, better defined bass from the lower mids on down, and more powerful, impactful bass. (I might have lost just a bit of extension at the very bottom, though -- still checking on this.) Obviously, adding the stuffing must have helped break up internal standing waves. This experiment got me to thinking. Would the speakers benefit (maybe even dramatically) from removal of the white surface "skin" from all of that Blackhole 5? Or, I could remove only strips of the "skin," thus alternating between the skin and open-cell foam. (The inner walls are virtually covered with the BH5.) I assume the skin on all of the surfaces actually helps to perpetuate standing waves rather than breaking them up, and also serves to reduce the inner volume of the cabinet by quite a bit. With the skin removed, the open-cell foam might absorb/break up those standing waves, and also yield a greater inner volume. Am I totally off-base? I'd be grateful for any advice/corrections. Thanks.