Bach 351 Trumpet 1-1/4C

If you have thick lips like i do, this is the mouthpiece you want to buy.

Pros:
Big sound, with a variety of colours
Quality as expected from Vincent Bach
Versatile enough for most performing situations

Cons:
Big-lipped players might find a bigger mouthpiece more comfortable and liberating
Doesn't handle a large bore instrument with the same ease as it does on a medium large

Overall it's a great mouthpiece, as shown by its widespread use among professional performers. For me it's not quite the perfect fit, hence only 4*, but a great piece of equipment nonetheless.