I own a few brands of trumpets and alternate between them.
The Fides brand from Spain gave me the opportunity to design my own trumpet model, the “Luis Aquino” (LA) model, and I use it very frequently.
My mouthpiece is a Warburton and it’s also my own model “L. Aquino”. I use the Q backbore.
Warburton Mouthpieces give me the sound an intonation I need and I can get any alteration I dream of. With these guys I can go crazy and anything I create in my mind to change my mouthpiece, they’ll get it. The mouthpiece I use is marketed as the L.Aquino model.