blower

I began my playing career in an English Brass Band playing several loaned cornets until I got my own Besson. This instrument together with a deep cup mouthpiece gives the typical Brass Band sound which is pure and sweet. I am no longer in a band and have focused on small group jazz, nothing fancy just playing standards for instance in the style of Ruby Braff (hopefully). I began to feel that an American cornet would give me a more authentic sound and I eventually bought a Getzen Eterna with a copper bell, this is a fine instrument (particularly valvewise) but it is still a bit too much like my besson in sound quality even though I have gone to the extreme length of changing my mouthpiece to a slightly shallower model. I have begun to think that maybe the long model cornet is the way to go, Ruby Braff is holding a Bach Strad long model cornet on the cover of an album I have, however during correspondence with an American player and collector he has warned me against buying a Strad for this purpose. I would appreciate your comments, do you agree with him? is a model 37 better than a 52? can you recommend anything else?