Lately I have been wanting to get a new brush and I think that I want to get a Simpson. I exclusively face lather and I only use MWF or MdC. Right now I am using the one and only brush I have ever owned and it is a Royal Shave best badger with a 22mm knot. I don't mind spending up to $100-$120 on a Simpson. What would you guys recommend? Also, is there a huge difference between pure & best badger?