Don't they sound veiled to you?
The bass is kind of muddy too. That was when I still have my W3.
I preferred Westone's braided cable over the Shure cable, Westone's cable is more flexible.
If you're asking about my impressions of the Westone 3, then yes the bass was somewhat muddy. They simply sounded "off" and lacking detail from top to bottom compared to ER4. "Veiled" would work also as my description too because it sounded like there was a "hole" in the mids although upper treble was not bad.
I did like the W3 cable but it failed. For that much money there should be a replaceable cable. This is what impresses me about the Shure line. I'm worried that my Ortofon cables will suffer the same fate, it will happen eventually. I will never buy another IEM that has a fixed cable.