Yes there was a batch that wasn't annealed properly.  Somehow they slipped thru their QC.  Common problem is what you see here too hard the end just snaps off.  If you have a set you would like to have checked please send them back to me.  I will take care of it for you.  Sorry for the inconvenience. 
 
	 
 
	FYI the manufacture just upped their price on each part by $50.00.  So that puts my cost at $750.00 plus shipping almost what they sell them for. Don't forget I need to buy 10 parts at a time. 
 
	 
 
	Thanks  Joe