It would be so very nice if people would take the time to read stickies before posting;
http://www.bladeforums.com/forums/showthread.php/903477-Warranty-Issues
I have to say that I'm mostly with Berkely on this also.
I find it hard to believe that this problem wasn't addressed by Uncle Bill when it was originally posted in 2003.
I personally also find it hard to believe that one member would start with a couple dozen cracked cho khukuri and end up with over 100 of the same. The probability of this is nearly off the charts impossible. I'm not saying that a cracked cho can't happen. It can, but not in the numbers that the op seems to be suggesting.
Until SkagSig40 takes the time to personally address this problem with Yangdu by either sending her pictures....or better yet sending a knife back to her for scrutiny, anything posted here is speculation.
If he feels that this is a warrantable problem caused by manufacturing defect and upon inspection, Yangdu feels the same, I am fully confident that he will be made whole as HI has always done.