Phantaminum
Headphoneus Supremus
It's actually quite discouraging to read how many mixed reviews there are on pads for these ... the only consistency I am finding is with the ZMF Eikons
I have the Lawton Pads that V-Racer reviewed. For your TH-X00’s sake stay away from them as they’re really meant for the TH900.
You have a great first world problem in that there are plenty of pads that you can purchase that are more comfortable and still sound great. Personally I love the sheepskin Dekoni pads and I’m hoping to try out the ZMF Oris. If you’re looking at the ZMF Eikons PM me.