I am a high school trumpet player so please excuse me if i'm just wrong or confused.
One of the things I've come to love in the past couple of years is drum corps and just the amazing sound that they produce, but when i listen to some of my favorite solos that occur in even the mid high range (like high g-c) they have almost a squeaky tone that really sounds great in the upper ranges.
(a good example is the cadets 2003 trumpet trio at 3:45 https://www.youtube.com/watch?v=FwC0wreFez0)
I can play solidly up to high D but none of my notes sizzles or pop nearly as much as theirs. they have an almost jazzy sound that i've never been able to replicate. ive heard this in almost all ranges as well.
I'm not usually one to call on mouthpieces but could a mouthpiece affect your sound in that way (i currently play on a bach 1c which is certainly not what they use in drum corps).
Is it just a style thing or is their something that they are doing or using to achieve that sizzle sound?