Actually I decided to take a different approach. Since AE cannot get me a replacement blade I decided to modify the extra right blade to become a left blade. I took a box knife and shaved off the tab that holds the blade to the wrist. I then shaved off a little plastic from the opposite side and super glued the tab to the correct side of the blade to make it a left one. I then took a metallic silver sharpie and painted the side where the tab used to be. All said and done it holds great.