Assuming you're a decent keyboard player, I think you'll be best served by The Trumpet and a breath controller.

Although you'll really need a breath controller to get the most out of both instruments, you've got other options. You can use the Modulation wheel to control the amplitude/timbre of The Trumpet and WIVI instruments.

And if you want, you can go into the BiaB Piano Roll Editor and draw in the CC curves to manually create the dynamics.

Heck, you can even do that with the GM trumpet patch you're currently using, and see if you can get better results that way.

By the way, Embertone has their Chapman Trumpet, which is a sampled trumpet, so it won't have the dynamic timbre changes of The Trumpet 3. But it's got lovely sampled legato transitions - you need to practice to get used to the delay in moving from one note to the next, but it's a gorgeous sound. It requires Kontakt full, but it's only $30.

-- David Cuny
My virtual singer development blog

Vocal control, you say. Never heard of it. Is that some kind of ProTools thing?