My LunaShop cable came in!
I do not believe there is any difference in sound. Wasn't expecting it, though I did hope. Upon first using it, I had naught but hate for it. The wire is stiff and springy, and does not drape over my ear. I must use the chin-sinch to keep the cable from bouncing over my ear and hanging free.
After a few hours, though, I gotten more used it. I'm on my second day of using it, and it's even better.
The Spiral Dots are back in place. The IM03 was still a little peaky when I was in a mood to notice, so currently I'm not using the UE tips. The sound is very smooth and spacious. Still quite a bit lighter than the IM04.
I'm coming to the end, here. I will need to make a final decision very soon.