I'm still pretty torn to be honest with you. One minute I think I love them, the next minute I'm thinking of selling them. But usually when I start waffling like this, I end up selling and not regretting.
The arrival of the W11JPN has clarified matters a bit. It is on the whole less fatiguing and much more pleasant to listen to then the W5000, but is nowhere near as resolving. The W11JPN sounds like a very very good headphone, and the W5000 sounds like a flawed audiophile grade headphone. I put on the W5000, and am instantly excited by its sound signature, but by the end of an album I'm already fatigued and don't want to keep listening. On the other hand, I put on the W11JPN and am not immediately impressed with the sound, but after a few songs I am completely seduced and loving it, and I want to listen to music on it all night long.
I just wish there was a phone with the general sound signature of the W11JPN, but with better resolution, detail retrieval, and bass impact. And of course by all that I've read, this is the L3000. But at the current market prices... yikes!