Make materia inlaying a NPC action, not a crafter action

[Xenor]

I actually hope a double inlaying fail only blows the materia and catalyst if it stays off npc.
Then crafters won't get snowballing demand for their product, plus control over finishing and starting the process.

That would make sense. I mean could you imagine trying to add double inlay to any of the NM drops? Would you be happy blowing up Bardiches trying to add double materia? You would have to profit crazy amounts just to make it worth the risk. You could succeed on the first try or the tenth. But then isn't the materia made from the weapon to begin with?