I finally located the two concerts on Spotify. The atmosphere at the Davis/Coltrane concert is electric and those cheering, whistling French fans that I've heard on other concert dates are well in evidence. But where have they gone on the Davis/Stitt concert from the same venue? It's altogether a quieter, politer affair. This may well have to do with the different saxophonists. Coltrane's contribution is startling, blistering and the fans sound like they love it. A chorus of approving whistles greets a passage of repeated harmonics on "So What" and the tour de force that is Trane's solo on "Green Dolphin Street" brings a torrent of applause. As others have commented, he's looking to future developments here - his solo on "All of You" has strong hints of what was to come in c.1965 and admittedly doesn't gel with the general tenor (no pun intended) of this group. He's in a different world from Wynton Kelly. What is surprising is that the noisy fans greet Coltrane's "out" sounds as if they were Illinois Jacquet squeals from a JATP concert. Compared with this, Stitt is 100% competent and businesslike, but the fire just isn't there.