No, can't say I do. But I'm am spoiled with the soundstage of my IEMs, the likes of Traillii and Mest3.
Do you use standard tips?
Yes, I use the standard tips, not sure what other tips would be compatible with the tips connection on the QCE. To me, QCE IS THE largest sound stage I've ever heard, even for wired iems standards. It's uncanny. Although I'm not updated on current trending TOTL iems, I have heard several from years ago. So, I do not know how big Traillii or Mest3 sound stage is.
I really have doubts that this huge sound stage I'm hearing is any sort of bias or placebo. Bose is not a brand I've ever cared about, and do not care for their full sized products, but these bulky QCE products they put out at least hit it with me with the sound stage aspect. When I first hear it, it has sound stage like full sized headphones.
I'm not even sure what I'm hearing is different due to ear anatomy since we are talking about sound that's going through in ear, there is no ear shape effects which do actually change perception of sound stage. Any difference we hear is through the ear canal shape, which I always thought attributes to tonality in terms of how harsh or laid back certain frequencies sound because our ears canal shapes can resonate or emphasize certain frequencies.
However, we do get experiences of larger or smaller sound stage through in ear, which is quite interesting. I wonder how this actually works.
To me, the sound stage and imaging to the extent is there, and if the resolution and treble quality is up there, it would be ideal.