Are you sure?
Seriously, that one's kinda tripping me out, becasue I hear a very strong personality at work, and it's Johnny Griffin's! The beginning sounds like Shepp's articulations, but not for long. Plus, there's a few moments where the lines threaten to go off into Warne-land, but again, not for long. The whole thing sounds like a really mellow (and/or old) Johnny Griffin, and I'm at a loss to think of who else's personality I'm hearing.
The thing is, the guy sounds really well-seasoned (the whole band does, really, the pianist's voice leadings are exquisite), and the vibrato is that of a Chicago player (as is the sound of the upper register). The tone's not Von Freeman's (nor is the phraseology), and if it's not Griff, well...
That note at 2:38... the phrasing from 3:08-3:13...and 3:37-3:40...6:46-6:54...
Are you sure that's not Griff?
I'm perplexed!