Your entire opus for only 5 months is quite impressive. A lot of my posts, FYI, have been posted in the 'For Sale' forum.
No, he actually preferred his $399 JH5s over his $1,100 JH13s at first, then he suddenly started raving about the JH13s, then suddenly sold them and preferred the W3s & JH5s. So, he doesn't like the W4s, what is your point? The point is not whether the W4 is the 'king' of IEMs or not, but whether top-tier universals can actually compete with (high-end) customs.
One thing that is often overlooked when discussing customs vs top-tier universals is the fit people originally get - AND tips used - with their universals. I, for instance, have always found single flange silicone tips the best sounding. When I got my ES3X customs it was then that I confirmed that single-flange soft silicone tips (which I'd used all along) where the best sounding and closest to my ES3X's SQ. Complys, olives, or tri/ bi-flanges, in my case, sounded way off. If I'd stuck with any of the 'wrong sounding' tips, I'd have found my ES3X waaaay better than my W4, UM3X, TF10, CK100, IE8 & UM2. My ES3X, BTW, sounded significantly better than all other universals listed in my sig, even with the best sounding tips.
Not saying that single-flange silicone tips are the best for everybody. There's all manner of things going on, such as sound preference when choosing tips, not only comfort. With customs, however, there's no choice of tips or sound sig, what you have is what you get, unless a re-fit is needed.
I maintain that in my experience a well fitted top-tier universal should not sound significantly different to customs.
There's much more to it than that, but that's enough for now.