Clinton, I think that the special feature of the Bumblebee pick is that the projection eliminates the variables that occur when using a triangular pick - e.g., the triangular pick sliding rather than striking precisely, or the point of the pick hitting the string versus the edge of the pick. No doubt there are other variables.

Re twang: the National pick (maple syrup) eliminates the twang that I get with the Herco light (ketchup). No need for me to worry about all those other factors.

Peace: do you play dulcimer? I guess not.

I believe that when one sings "Since I met you baby," it's a nice idea to sound happy. The guy who recorded it made it sound like a dirge. No need for that.