Apparently a Beechcraft Sierra is a bit of a rare bird. Unless I have filed, it is not very often when I talk to ATC that they understand what I am flying. I have been pointed out to other traffic as anything from a Super Cub to a Dutchess. I guess as long as the other pilots are actually lookig for me that is all that matters, but when ATC is trying to sequence traffic, the Sierra falls squarely between the Super Cub and the Dutchess for approach speeds. So in my mind I have three options: Beechraft Sierra, Beechcraft A24R (the model number), or "Type BE24" (my FAA filing type). Which one would best help them to understand the performance capabilites? ...or am i missing another option (other than filing every time) that would work better?