Ugh I'm sick of this. My ponytail as Au Ra clips through my Greatswords 100% too.

I don't understand why they haven't implemented QA standards yet for this?

"As best as able, avoid XYZ space when designing"...

They need to make tails detached so as to make it so they can be auto-hidden with certain gears.

And either rig weapons in such a way that they 90% of the time don't clip hairstyles or give an "up do" toggle.