801 difficulty mats

When 2.3 launched I looked at my crafting log to see if any new recipes were added to the regular and first master book. I saw the Intricate Silver Brocade and saw it was 801 difficulty, which is WAY higher then the regular 3 star armor.

My question is: Who has made some of these upgraded mats? Did you need absolute maximum melds? How difficult were they really to HQ and what rotation did you use? (I imagine a ton of Hasty Touch and ToTs right?)

I'm apparently ignorant and didn't see "High-Quality Uncraftable"

I guess what I could ask is where do Mastercraft Demimateria come from?

Artisan's Spectacles, it is the only source of mastercraft, and the primary source of Field 3

(yes you could nuke the artisan weapon line but who in the right mind is going to do that?)

Ugh... So my favorite headpiece in this game... and fantastic, another desynth I have to level... Wanted to do BSM/CRP/ALC for primal weapon decompsition but now have to resort to BSM (already had this leveled)/CUL/GLD. Thanks for the info