None snapped in half!
A couple have had the blade inclusions though. Have not heard of anybody having any issues getting them swapped out by the shop though! <img src="/ubbthreads/images/graemlins/laugh.gif" alt="" />
Of interest, a Crash Axe or two suffered the same problem. They are also SR-77 so the DFs with problems were most likely made from the same steel batch.