"Obviously this doesn't provide security when giving a crafter resources to make an item (even though you can see what they made, they can still simply not give it to you), so I always recommend selling the resources to the crafter for a fair price, then giving that "deposit" back when they return the item. "
so in other words there's still no security?
if a crafter ended up making a great item, he can just not give it to me. he can say it didn't turn out good or say he was making that blade for a previous customer and so on.