nah..I've been browsing on Taobao site and stumbled on this, they charge service to 3 different price in order to change the cable (4 cores, 6 cores and 8 cores) the 8 cores cost a little bit over USD100
seems interesting but I'm just a casual user with no knowledge about cable.
Not sure if allowed to post link here, anyway...if you can read chinese PM me, I'll give you the link
My friend putente would be interested in this. I shall let him know, Please send me the link via PM.