I think Zoot definitely played "fresher" earlier on, and also hear a certain "deadening" as the years went by, but..life does that to people at least as often as it doesn't, ya' know? When it does, I'm more interested in hearing if the guy knows that it has (good) or if he doesn't (sometime better, sometimes worse, but usually pretty "spectacular" one way or the other) and Zoot...usually it sounds like he knows but doesn't care, so yeah, you get a lot of "Zoot" w/o there always being Zoot involved.
But sometimes...there's a Pat Williams Verve side where he's featured on "Hey Jude" of all things, and the guy...he's waaaaay out of tune on it, which is odd for him, and you can hear him thinking bad things about life to himself with every note he plays, but the funny thing is - he swings his ass off. And to me, that's when I like me some Zoot, when he just goes ahead and swings his ass off. That he could do so on a Pat Williams take on a Beatles tune on an album that is likewise full of nothing that he probably felt any affinity to whatsoever, well, that's what happens when you drink too much and don't really engage outside of your own world. Sometimes you just start giggling at shit and it's all funny once you do.