The mod bug got to me, as Hifimans are known to be modded and I want to bring these to its max potential. The first mod was a piece of shelf liner under the pads:
I've been running them since like this because I think the mids sound a touch thicker and well rounded with it, may have reduced treble a little bit.
Next was looking into fuzzor mod and open grill mods:
Unfortunately theres the layer of mesh screen on the back, no fuzzor mod (not impossible but beyond my comfort tampering with it as the wires are soldered through it.
Forgot photo, but I did run them for a night without the pantyhose material under the outside metal grill for open grill (it looked really good). I was really intrigued by this because if you hover your hands over the back of the headphones you can hear difference in sound right away, removing the thin material should yield positive+noticable improvement. I found that soundstage and imaging improved, but overall it sounded lean and bass lacked tightness.
Currently running shelf liner + diy braided copper cable and enjoying as it. Interested in getting thicc comfy pads in the future.