If you do end up trying the pleather mod, a word of advice, don't use the same dust screen that's on the pleathers currently. It's thicker than the velour dust screen so it attenuates the treble slightly and makes for a darker sound. Some may like that but it seems to mask some of the micro details making things slightly harder to hear. I also found that I needed to turn the volume up a little higher to achieve the same volume as velours.
I had to go back to velour because of this, since I super glued that pleather dust screen on so it's impossible for me to change it now. It's a shame because jergpad is simply the most balanced sound I've heard from these headphones.