Hi Dave and others,
Myself a Stern fan since the late eighties, with a jazz mentor who played with Stern in the seventies, and likely reiterating what a lot of folks have already touched upon here…
Transcribe his lines.
Bop is a language, and even if one is fluent in that language, one is not likely to sound like Stern unless one walks in his shoes. Transcription helps the ear. If you are able to transcribe the root movement, you are way ahead in the game. If you can relate his solo lines to the underlying harmony, you are even further ahead. Using one’s ear independent of one’s instrument is a critical skill. Combine that with studying others’ transcriptions, you’ll be miles ahead, no pun intended.
Plenty of lines that he plays that wouldn’t require you to embark on a lifelong study of modern jazz. Walk in his shoes if you want to capture the inflection, yes? Pick a recording, an era, and get out Transcribe! or similar and return with specific questions? Nothing more fun than “being one” with a line you figured out by yourself. Nobody here need stay stuck on any given specific.
Peace, Daniel