Just a quick over-coffee addendum about the Clever Coffee Dripper.
I’ve had the third run of coffee from this gadget! I just had to know if the stirring at 1-1/2 (or so) minutes made a difference so I made one cup without doing that. It does, indeed, make a difference. Definitely a more complex flavor if you do the stirring.
On the third batch, I did make the grind just a bit finer and like that better too. I may try just one “click” finer on the grinding and see what that does.