Enclosures on chord tones are a very popular bebop/jazz improvisation tool. I would say he probably has enclosures memorized in all 12 major and 12 minor keys ton make that lick almost 2nd nsture
To answer your question though, he is playing on his own GR signature mouthpiece. (GR WB Studio) rjgamer90 is correct in what he is saying. It's important to play on equipment that is suited for you. What works for Wayne, may or may not work for other players.
Mouthpiece doesn't matter. I've seen trumpet players easily go up to double C+ on Bach 1. Bach 7C. Bach 3C. Some guy from a different band came to a rehearsal we had grabbed my horn and 7C Holton started playing double A up to C's clear, clean and no pressure....
c'est d'une laideur incroyable .Maurice andré faisait des triples contre ut sans force mais vous n'etes pas de ce niveau .Vous ce que vous faites c'est du cirque pas de la musique . Vous vous croyez intelligent non. Apprenez déjà le solfège
