I cannot say, though I can say ZAM won't post things without proof, such as they are given as rewards for local leves, or are the objective of said leve.
Are you getting any sort of system message in your chat log when trying? If you are far enough below a recipe's optimal rank, it will not allow you to attempt.
The system message I receive is "You cannot make anything with those materials."
This is displayed after loading the mats into the Materials window and pressing either Main Hand or Off Hand.
The interface does not go thru the subsequent windows of selecting a recipe and crystals where the message attributed to insufficient crafting rank would appear.
Thanks for the quick reply, and the quality of posts is one of the things I love about ZAM.
This recipe is a personal issue for me, as I posted it on a different site a couple days ago and was burned down in flames after others reported it not working. Edited, Sep 11th 2010 6:09am by Galoise