Conveniently, I've typed this up in the past: http://catch-and-sing-the-sun-in-flight.blogspot.com/2009/02/closing-loop_20.html http://catch-and-sing-the-sun-i

Conveniently, I've typed this up in the past: http://catch-and-sing-the-sun-in-flight.blogspot.com/2009/02/closing-loop_20.html http://catch-and-sing-the-sun-in-flight.blogspot.com/2009/02...