While waiting for my JVC HA-S500s, I have decided to change my Sol Republic - Tracks HD to make them better, as they have a sentimental value to me. My plan was to implement new ear cushions to get them the comfort of a full-size headphone, and the size of a portable headphone. Sadly, it does not seem to be that easy. After contacting customer support about 5 times, I was told that there was no possible way to obtain new ear cushions, (So much for "easily-replaceable parts".) so I decided to browse for some that could work. After some time, I found the Beyerdynamic EDT 250 pads on Amazon, and it seemed that they could get some work done, but I have no exact measurement for these! You see, the pads that are used by Sol Republic have 6 plastic divots that are used to hold to the sound engine. The Beyerdynamic EDT 250 pads have 4. That seems fine, but I do not know if they are compatible! I was hoping that someone with these pads could measure the small divots that are used to attach them to the headset. As you can see, they seem rather similar, so I was hoping if someone could measure the distance between divots, so I could compare them to my sound engine, or if someone knows how to get a replacement that could get close to these. Thank you for your time.