Coming off of Maynard Fergusson’s band, Denis Di Blasio could blast the volume on his horns.
However…..
He was told by John Krell, “You’re fine for triple-forte on up, but you can’t lay anything soft, you’ve been playing loud for so long.”
(pg 3 ‘Saxophone Masterclass’ from the Windplayer Editors)
Different levels of volume use your muscles in different ways. So to be able to play a range of dynamics, you need to work on these different muscular sets.
So use dynamics when you practice. Play loud and soft. Use crescendos and decrescendos.