Our concert band consists of 8 trumpets. I play in the 3rd section, with a Getzen custom lightweight and a Bach 47.
Nothing kills the ears and destroys the musical senses like hearing a blaring, cutting, laser-beam, knife-in-the-gentials, marching band sound that lightweights tend to produce....In a delicate concert piece. When you push dynamics on a lightweight, it tends to produce that sound. Controlling a lightweight is a completely different game than with a normal or even heavyweight. Of course, some people think the normalweights are too "vanilla" and the heavyweights have a "dead" sound....
So anyway, if you can control the lightweight bell, and you have the musical ear to blend with a section, AND that is the horn you play best with, you are set.
Y'know, it would have been easier to just say "I agree with Mr. Wilmer."
Van