Before Selmer Jazzflow mouthpiece I was using Vandoren V16, which is a little bit darker in sound, but still it can be bright.
Difference between those two is very big, Selmer is more free blowing and a lot brighter, and also the loudness of the sound, sax with Selmer mouthpiece is a lot louder than with V16. It’s very good mouthpiece, I definitely recommend it for begginers and pro saxophonists!