Just got back from a Sunday morning gig. Warmed up for 2 minutes before I played. I may have. But I think we agree more than disagree. I agree with you that dependency on a long warm-up is not productive. And I agree that trumpet playing is a fine motor activity dealing more with muscle memory and muscle tone. We maybe only disagree on the physiological benefits of a short warm-up. That's cool. Also FWIW, I'm differentiating between my warm-up (a 2-5 minute routine that I do each day before I play), and my daily routine (what I do each day to keep developing as a player).