I recently purchased a Wessex BR140 baritone. It came with a heavy weight cone shaped mouthpiece. I don't know the size, but I guess it is in the 4 to 6 range. Previously I have been playing a Wick 6BY on an old Conn Double bell. I liked that mouthpiece. Does anyone have an opinion of the differences between these two mouthpieces and what tonal differences I might get by using either mouthpiece?