Brush experts help: Can a knot have synthetic and boar/horse/badger?

Can a successful brush knot contain a mix of synthetic with either boar, horse, badger all/some/none?

I don't see why not.  However, I don't know what the benefit or demand would be.

(04-12-2020, 11:48 AM)jackgoldman123 Wrote: Can a successful brush knot contain a mix of synthetic with either boar, horse, badger all/some/none?

I've never had a knot with blended hairs/fibers. I've been told by a supplier that blending can compromise longevity due to uneven wear. I can imagine why that could be the case with some combinations, but, again, I have no personal experience.

Google search “Van Yulay Hercules knot”

There is also this monstrosity from dcosmetics on aliexpress

(04-12-2020, 02:19 PM)mike_the_kraken Wrote: Google search “Van Yulay Hercules knot”

Does anyone have feedback on this brush?