little star-struck innuendos...

Sometimes it's what you don't see that makes all the difference in a job. You don't see the hard metal pipe under that layer of R8 insulation. You can't see the hard 90s under that flex duct that scoop the air into and out of each run. You can't see the custom transitions that spread the changes over two feet of run. Or the ducts that are sealed on the inside with silicone at the seams and painted with mastic at the seams on the outside.

You don't see the 75 or 80 hours I spent on my hands and knees making it all happen either. But when the temperature in the house doesn't vary more than 2 degrees from room to room or from one end of the envelope to the other you don't need to see those things. The best thing you can say about a properly designed duct system is that you don't notice it. That you never know when the system is running. Comfort doesn't get noticed. Lack of it is what gets noticed.

To paraphrase Dan Holohan, "Years from now men will look upon my work with wonder and never know my name. And that will be good enough for me."