Alright, STILL trying to get soot black.

I'm sitting at morbol green right now. I followed this chart (https://imagizer.imageshack.us/v2/18...661/vBZmlD.png) to get from currant purple trying to get to marsh green, but I had to feed 4x pears to get the feather messaging, so I had a feeling I'd overshoot it a little, and I was right.

Does anyone have any advice on how to get to soot black from morbol green? I feel like I'm so close here.