I can tell you that the Shavemac I just got with the STF knot is the best brush I've ever used. I love this thing. I have an RV with this knot coming in the mail. I expect it will be everything I hoped it would be, based on my experience with the Shavemac.No, but I’ve only heard great things about those knots.
I figured I’d end up with one of Rudy’s brushes one day. We’ve chatted several times but it hasn’t happened yet.
I don’t expect to add any additional synth brushes any time soon. 23 brushes should do. <eg>