Hi
Amazon training pieces not dropping. No problem getting helmet. Twice I have gotten the chest to drop. Tried the salvage and redo anger trick. Cant get anything more to drop. I have killed enough Amazon to get the achievement for killing thousands. Tried every level from normal to T12. Any more tricks or ideas to try?
I too had problems w/ this.
I had tried it w/ my summoner necro, no luck past the helm. Tried again with my ww barb, no luck past the helm.
Then I tried something different, I went to my winged strikes paladin that wasn’t fully glyphd up and went to a torment that he could barely kill in; where it took a good 20-30 hits to kill things. Suddenly the parts started dropping and within about 15-20 minutes I had the full set. I then stashed the parts and moved them to my barbarian and killed the elite for the final thing.
I would suggest try a different character if possible. AFAIK you don’t need to be in torment to do it either, so you could make a new character and do it on normal/hard/etc.
Salvage ALL Amazon pieces you have - Inscribe Anger - Read Tome - Hit Training Dummy - Farm Amazon pieces again.
This solved it for me.
Before this I farmed the full set on an alt and gave them to my main.
This did NOT work for me, the rose never dropped.
My two favourites are the 3x ghoul collecting and throw items in the purple mushroom aura and the Raven Flight.
I did the ghouls gathering many times.
First time i did it with the ww barb but he has autoshouts that do damage 
. If you have no other character to do this you have to adjust the skills of your character. Finally i did it.
I did the raven flight (just following the raven) and thought: Man that will be so easy. Then it was flying where you cant walk and have to quickly find away around the obstacle and keep up. Sometimes a bit tricky when the area is full of monsters that may catch your eye for distraction.
But after a few tries i was easy.
No other problems doing the quest.
Happy Mooing 
PS: The 666 cows & gathering 3 items i did with 1 character. I was very lucky.
Would really love a step-by-step guide for what’s going on here. I’m at wits end whether to continue grinding to p300 in helltides or continue cow hunting for emote.
Ya Amazon Parts not drops on my barb too. They should fix it
Now i tryd on warlock.. i came till the amnazon tunic other parts not dropping. Tryd that re Anger, now nothing drops again
You can watch these cow level guides from Silver:
Neyrelle’s Hand:
https://www.youtube.com/watch?v=6GZmzpQsDfE
Full Cow level:
https://www.youtube.com/watch?v=GV7yHKS8-lw
I used a written version and a vid shown above me 
Thanks for this, this helped me as well!
So happy I got the Mother’s Rose now, onwards to the finish line!