One thing to definitely keep in mind about the CK 100...
I noticed they have the epic clarity, forward mids blah blah blah, but in the end source/EQ makes HUGE differences for these phones, hence "you'll love it, or hate it". With the right set up, I honestly feel that these can be unbeatable.
I stuck it into my samsung p3 and played some flac files. Sounded brilliant. Absolute joy. Heard details I've never heard in the Westones, Shures, Triple fis... etc. touched up the bass a little on the EQ and it was even better.
Then I tried it on my iphone 4. Horrid. I couldn't stand it. Without anything to really push apple product's sound, things like jazz and classical played through alright, but it wasn't the phones I remembered on the P3.
I also read someone here mentioning that they want the ck10 for the smaller housing... ck100 is most definitely the smallest triple driver iem I've ever seen (I think they are the smallest...) but they aren't designed in a way where you can lay on your side etc etc with em. With my Westone 3, laying sleeping, etc = no problem...
I'd be interested in hearing what other folks might say about these... They are still... "in the air" for me.