Dude, there's no such thing as "assurance" especially when it comes to cables. I have not met two persons who share exactly the same taste.
The only "assurance" is that John at KCI offers 30 days money back guarantee. You just have to make sure that the 30 days exclude the time it takes to ship the cables.
I used to live in Asia so I understand your pain.
Thanks for the update. arthurs, i have email john, hope to see his reply soon. read raving review on kci at this site.
however i just need some assurance before i decide on the IC. Pete, do you mind to chip in? thx
So Barry, how do you REALLY feel?

But you're right about preferences. In order not to develop ulcers over this, here is my sweeping generalization, that so far has rung true:
Copper sounds like copper
Silver sounds like silver
Gold sounds like gold
Meaning: just about any standard cable (not accounting for unique geometries) from different manufacturers will sound so close it may be exasperating and expensive to try them all to be sure in yurown system. How do I know this? I've tried many and only a few times have I put them on my keep list. For copper it's Reality, for silver it's Ridge Street Audio [Poiemas], for Gold so far it is Audio Metallurgy. Someday I might be able to afford KCI's, but for now I found I like gold over all else and am gong that route. And I have Poiema SC's and Zu Ibis (also silver) SC's in competition right now as an FYI (because gold SC's are so darned expensive!!).
Certainly not scientific, but even I have to cut bait and actually fish once in a while.