Anyone with a Rudy Vey brush already knows all they need to about what superb work he does and what a great guy he is to deal with. It's guys like Rudy that make B&B such a great place! Congrats on your new brush; may you get many years of shaving pleasure from it.
I just lather-tested it, and I found that I need a slightly different lathering technique than with my boar. With the col conk soap I got decent results on the first try, but the casswell massey greenbriar cream was quite hard to lather up, I'll have to practice some more there.
And wow, this brush holds soo much more lather than my other brush! I've got enough lather for two passes inside the brush only..!