nice...great review!!

i heard people also sell the silver cables replacement for kz, i wonder if you can try it too

Well articulated mate

what is the difference between ZS3 and ZST. I'm more into smoothness, detailed sound, instrument 
separation/imaging, great soundstage and controlled tight bass. I like it to sound like I'm in a big theater. Which 
will be the better choice? Can someone give the difference about how they sound? are they an upgrade if i had soundmagic e50 or the e80?

I bought the ZST to see if they are as good as their rep. They are. A pair of large Spin-Fit tips (the best style / size / shape to fit my ears) made them even better.
 
If this design was intentional, rather than a happy accident, makers of more expensive IEMs should be concerned.

@dysonapr Glad to hear it! I wish it fit me as well as it does you.

what is the difference between zst and zst pros? I see on the website that the difference in price large in appearance not

Just a silly question maybe, but just received my ZST and the ZS3 in ears, and on the cable is written L for left and R for right. How do i know which speaker piece is R and which one is L? Are they 'shaped' accordingly your left ear and your right ear? or doesn't it matter which one i connect to R and one to L?
 
Greetz