Greetings: I just got back from my local brick and mortar knife shop. I was looking for a plain edge Endura or Stretch in zdp189. Unfortunately they only had the combo edge in stock. The counter person then mentioned that Spyderco was discontinuing producing all folders in ZDP189 because the difficulty in machining this steel made them cost prohibitive at the current price point. Has anyone heard this or is it BS ? OldDude1