I'm kind of looking around for an upgrade on my Willsound MK2. I can't seem to find anything that trumps it at local store except maybe the ATH-CM2000, but I'm not ready to put down that much money yet. I was looking at the Toneking TO600s and the new Masya Pros. They both seem like decent upgrades. Anyone with them and the MK2? Are they an upgrade? I kind of want something analytical with a ton of detail, and if possible I want a change from the standard plastic shells, and replaceable cables would be nice as I might go bluetooth or short-cable.