Actually I was thinking, bud... and I just realized something. The inner plastic rings I think may have no affect on acoustics. I think they are to keep the pads firm. Is it me or did anyone else feel the EMU and probably the X00 pads are very firm, (I mean, it's not a good example, but probably like female chest implants). They're like very firm and stay in shape and like stay fresh, rather than being limpy or floppy, which pads become sometimes due to continuous pressing against the ears and then back to normal. They become kind of sloppy. I think that is where the inner ring helps. I think if any aftermarket pads can stay firm, we may not need the inner rings. Cuz otherwise, the inner rings are glued in that way, and the pad-skin is tightened well to keep em firm for much longer. This is what we may have to do to keep our other pads firm if they ain't otherwise. I actually liked the 0.08 black sheet. And black would look better. Stock white looks quite out of place to me, good that it stays hidden.