When I joined Woody Herman in '84 we went to Europe with extra guests Zoot Sims, Sal Nistico, Bill Perkins and Billy Mitchell (Mitchell's not associated with Woody's band as much as the others- IIRC he was a last minute replacement for another player). That was a great trip, getting to meet and hear those guys. I gained a greater appreciation of all those players after that, especially Zoot.
Love Billy on The Magnificent Thad Jones.