Terms like "recessed upper mids" are sometimes annoying to hear - as they do not describe much.
It is possible to google the common frequency response range of many instruments, and based on that, find some precision in your assessment of frequency response. Unless you think that your head is the same shape as a test dummies, in all liklihood, the profile presented by testers is not the profile experianced in the "real world" of listening.
Straight up piano music is usually a good way to identify the frequencies of offense with any speaker system, as are instruments like a violin. In many cases, I would think the 2khz dip of the phones is more problematic than its 5-10 khz "spike", which starts to reach outside the response of a lot of great instruments and the human voice.
Why not challenge your ears to listen to such instruments and try using the EQ to soften the annoying frequencies? I cut mine around 1 khz, and then 3-10 khz. Only 1.5-3dB increments which are barely enough to "hear" immediately. But I find they took a little edge off certain tracks I had found them on.