Most of the Piper family of aircraft have the rudder fin set at about 3 degrees to the right of the aircraft center line. This might generate a right yaw/roll when the rudder trim is nuetral and S&L flight is estabilshed in flight.
I have never noticed this in flight-but I always have the slip ball trimmed central! Does this apply to the larger singles such as the Malibu Meridian, TBM700 and the PC12?
Mr L.