I think there is a bug with Khora which I might have discovered, with a Clan-Mate as we were farming pigments for coolant blue.
I as Khora, and him as Nekros did it in steel path. I consistently got double the amount of pigments than him. I had no smeeta to charm and we had the same boosters besides the drop chance booster.
We at first suspected that it might be related to hosting, at first my Clan-Mate was hosting so to test our theory out I became the host. With this we found out that it had nothing to do with whomever hosted. It was a bit late when we were playing so we couldn't test it further.
My Khora is a bit box-standard, she has Accumulating Whipclaw, Pilfering Strangledome, Spectrosiphon for her augments.