I came late to brass band music but have had a lot of other musical experience. This is the third mouthpiece I have used as a cornet player. I will not be trying a third. It plays well through the range and produces a firm and full sound. I find I can also play jazz with this mouthpiece. The technique is rather different from the brass band approach but this mouthpiece manages both easily enough. My jazz playing is very idiomatic which the brass playing must not be. I am very happy with this mouthpiece.
Thomann's price is very competitive. Delivery, packaging etc were all very good. I have bought from Thomann before and will do so again.
i was using a Denis Wick 4 but wanted something a bit shallower, I have been using the 4B for nearly a week now and I think it's the one I was looking for. I prefer the silver plate as I found the plating on the DW gold mouthpieces could wear quite quickly. I also have a silver plated cornet.