This is my new restoration. I took a real clean T&H handle and put a GN black in it. The brush specs are:
22mm knot
50mm loft
22mm knot
50mm loft
I have used mine about 6 times and it is prickly and scritchy. It does not appear to be getting any better. When you feel it with your hand if feels good, but when applied to my face it is not soft at all. Hopefully it will get better with more use.