Just talked to the owner of Matzuo(DON)
Aside from a bad lot and the change of factorys from China to Korea and the temp thing in the sand when they are heat treated. Something we overlooked and I beleive someone else metioned. the guys that are breaking hooks like AW. Are you pouring your own jigs or are you getting them from someone that pours for you. This whole problem maybe from the lead being to hot when you guys pour. If the lead is to hot your double heat treating them.This makes the hook brittle. I know when the lead is hotter that it pours better but this can also be the problem.
Skip//Could Phil be overheating his lead on some pours to make the lead flow better?