I have those headphones and I think the issue is more in the head-band than in the ear pads. I replaced the earpads with m50 ones and it helped a bit, but the headphones are still way too tight. I wonder if there is an easy way to take the headband off and put on a wider one? Preferable one that adjusts from the center, like on the HD 700? Also, if I was going to replace the earpads again, I think I might get some really nice ones, like Ultrasone Signature Pro earpads, which are made out of ethiopian-sheepskin. If you look on the audio technica website, they recommend that you put the headphones on a watermelon or something to stretch them out, but I have tried this on tons of different circular objects (infinity speakers, bike helmets, watermelons, etc.) with very little success. What I found is that the headphones would go back to being too tight after a few hours. I recently emailed Moon Audio, which is a company that does headphone mods, and I'll get back to you on their response. It's possible that they might be able to make comfortable headphones out of the athpro700mk2's yet!