Not prone to attacking ubers,been a while since I did,so out of practice.
Yesterday I figured it might be worthwhile, not so much as I didn't quite get the competition level I had hoped for. What dropped was mainly a load of rubbish, not what I had anticipated and not very useful to my game.
Addition below.
Drops were mostly task refreshers, relocations, peace treaties ,bronze, and sundries.
I shall have to see if this is the position now,or player specific in some way,
What a number of people (including me) do is to visit a neighbouring clan with a well developed Arms Guild, craft the desired equipment and then return to your own clan. I have come across a couple of well organised kingdoms which have an open "clan" with all the special equipment available and everyone in the kingdom visits there to do their crafting.
Anyway you might look about in your kingdom and approach one or two of the oldest established clans to see if they will accomodate you.