Bump of compassion. I wouldn't know where to start but I feel for ya.   What customs did you get? What IEMs are you coming from? It's not simply a case of being habituated to a treble-heavy IEM and then moving to a basshead CIEM, is it?

You haven't mentioned B&O H6, NAD Viso HP50, B&W P7

  OP, please let us know the results of this test if you perform it.

Please be aware that there is reason to be cautious about dealing with Dasetn (see: http://www.head-fi.org/t/707468/diy-yuin-pk3s-failed-about-a-few-months-seller-dasetn-now-refuses-to-reply).

Which is what may happen if OP's petition gets any real attention.

I hope someone gives you a nice simple answer, but if you ever feel like putting a good chunk of work into this endeavour you could have a look at this http://www.head-fi.org/a/how-to-equalize-your-headphones-a-tutorial

Haha you're awesome.

  I believe you're the first person who has heard both to report favouring the Roxannes. If it's not too much to ask, could you type a sentence or two on how you think they differ/compare, or what you like more about the Roxannes?

Dr Moulton, do you recommend the use of a portable amp with the K10s if driven from an iPhone 5S? That is, do you think the difference would be significant?

Haha I was just asking you about this on the other thread. Seems you beat me to it. Could you give us a few words on the differences, or at least what you like more about the K10s? I was planning on saving up for Roxannes but everything I've read, including the JH customer service, makes me...

You've tried a K10 demo, haven't you? Can you give your impressions on how they compare?

It's like they made my mum's sunglasses into headphones.

Whoops, I thought I was in the summit-fi IEM thread or I wouldn't have asked such a dumb question :)

Have you posted your thoughts re: roxannes vs jh16 anywhere?

See http://www.head-fi.org/t/698831/fresh-outta-ces-the-hifiman-he-400i-and-he-560 for what Matt is talking about.