Its still a bit difficult to understand what your looking for...for instance, are you looking for a vintage sound with a buzzy link like tone, something dark, something resonant?
My first gut reaction is to go for a large chamber mouthpiece. If that isnt working look into different necks. The Barone necks are a bigger bore (Im sure Phil will tell me if Im wrong). Regardless, they create a more spread tone and less refined (frenchy) tone than the Selmer necks. I have a Ref 54 and a 58 The Martin. The Barone neck tends to create a bit of a bridge between the Selmer tone and the Vintage American sound. It still isnt as spread but its moreso than orignial.
I hope that helps a little.
My first gut reaction is to go for a large chamber mouthpiece. If that isnt working look into different necks. The Barone necks are a bigger bore (Im sure Phil will tell me if Im wrong). Regardless, they create a more spread tone and less refined (frenchy) tone than the Selmer necks. I have a Ref 54 and a 58 The Martin. The Barone neck tends to create a bit of a bridge between the Selmer tone and the Vintage American sound. It still isnt as spread but its moreso than orignial.
I hope that helps a little.