Farming for the DLC 3 Zane head - oof!

Been farming the endboss for Bounty of Blood nonstop for days trying to land the Zane head with no joy. Must have run it over 50+ times.

It’s getting weird, so I’ve been trying different artifacts. The lucky loaded dice vs. a straightforward +17.something luck boost vs. no luck boost at all. Sure, metric buttloads of legendaries are dropping, and I think I’ve come across all the room decorations and other customization bits, but it’s making me a little nutty.

As an aside, I really like all the different and varied customizations in DLC 3. Would like to see the trend of plenty of collectibles continue.

Anyone else having a hard time getting that head to drop?