A friend of mine is having a horn put together for him, and the trumpet maker is advising to use a 5 1/2 inch bell. In looking thru different sites, the only manufacturer I see with a bell that large is Monette. Even the Getzen Genesis bell, which looked pretty large to me is only about 5 1/4. Have any of you had any experiences with this size bell? By the way ,the bell will be made of copper.