Hi there. First post! I bought a pair of these a month or two ago, and I also love the potential and the disconnecting cord, but the comfort is way off (I got the top pad many people recommend) and I especially did not like the flabby bass and empty high end. Here is how I addressed it so far:
1) I put a fair amount of fiberglass (insulation type) behind the driver. I read that fiberglass is one of the best damping materials. Armaegis, can you please explain to me the reasons that you used each different material? I found the fiberglass to help a lot, but I am genuinely curious of the pros/cons of the different materials. I'm fairly new at this, and the one time I needed to add fiberglass to a larger speaker it helped a lot, so I figured doing this in a similar way would also be a good place to start. I have some on hand, so it makes it easy. (Not literally, I wear gloves!)
2) I also tried taping up some of the driver holes per the recommendations. I'm not sure how much difference this really made. Fiberglass was a much larger difference, but I left it since I haven't opened it again recently.
3) I still felt that the highs needed help, so I *gulp* poked some holes in the pad near the center of the driver. This really seemed to help bring the high end out a lot more, which is what I am looking for.
All in all it's not a bad headphone, but I am certainly hoping for more improvements with other mods. I tried the 'sock mod' for earpad comfort, and I think I will likely try a thinner material like nylon next. I wanted to try the cheaper alternatives before coughing up the cash for velour pads.
Thanks, and I look forward to your feedback!