Thank you for the feedback.
I have taken a look at your test. It seems to be too specific for me to judge any set of headphones based solely on its outcome. It also does not mention any of the headphones in my finalized list.
I, however, understand that this test works for you as you are looking for that specific characteristic.
Since I have no way of testing firsthand how any IEM sounds, then the best I could do is run a proper research into the matter, which I have, and it has helped me in narrowing down my options. The fact that those options are close to the $400 price point does not mean that there aren't cheaper IEM's that provide good quality, but simply that for my price range those where the ones recommended by people who have tried numerous headphones, both cheap and expensive. It is obviously impossible for everybody to agree on a single IEM, but since this is the consensus, I'm deciding to go with it.
By the way, Jens Carlsson is one of my favorite vocalists as well :)
If you haven't already, you gotta check out "Dark Empire's" first album, "Distant Tides". He was the vocalist for them as well.