I fly whatever keeps the heading constant
in the cruise, at lest. Start with the seat of the pants, check the string and ball, average them out. Scan, scan, check everything again, back on heading and a little pedal, look at string and ball, and continue to average everything out until heading starts to wander either side. This works no matter how skewed the trim ball and how everything is configured on that particular flight.
Never much thought about it in other regimes...
Last edited by Devil 49; 3rd Aug 2013 at 05:14.