Lets not go there - the flip side is that a lot of people who find these sound differences are minor/non-existent can claim the same about your impressions. If someone feels that the differences are minor or non-existent, let's respect that. Or, if we are going to challenge that (which i am ok with), then it should be ok to challenge all those "night and day" differences as well.
I am curious. Do you actually get a sense of performers placed in front of you, the way they would at a live event, with ANY headphones? With every headphone i have tried, i get the performers around or behind my head. Never in front (although the HD800s do a game job there). Does anyone actually perceive the performers in front of them with headphones?
(This is a genuine question, not a challenge, btw).
Differences are difficult to quantify. A subtle to one is "night and day" to another. So take these kind of description subjectively.
As far as headphones go, it is a combination of the music and headphones used. Recordings with somewhat recessed vocals gives me the impression I'm hearing the performance in front of me rather than around me. This is more obvious on my T1 than the DT250.