BGwiki has "Brass Jadagna" recipe @ 82GS w/ "~42-52"LC.. It's quite probable that the absolute best you can get would be T1 HQ rate, so ~1/16 (~6.25% HQ rate.) Going 0/40 is far from improbable. Complaining about mats will have zero response or effect, so I wouldn't bother. ^^;;;
As a side note, rather than spam a thread with single line self replies, you might want to just update your first post with any updated information, particularly if there is not much traffic... I also am confused as to why you are spam posting in the QOL thread about a crafting issue.