Zenith Synthetic Brush , Black or White Knot ?

[alohakid]

I have every Zenith brush hair type except synthetic and looking to get one .
According to The Gentle Shave :
"Zenith has now come out with a black synthetic knot. I am told that they perform similarly to the lighter TS or S brushes but slightly softer."
I could just buy both but I'd like to hear some feedback .

 

[Lightcs1776]

I'm not a fan of a stark white knot, but that is just a preference.

 

[Rhody]

I have the white synthetic knot purchased several years ago. It’s a longer loft (akin to the rubberset 400 style) but it’s stiff as a board. Doesn’t splay at all. Hopefully a new version like this black is up with the times in terms of synthetic knots.