A Feather in an Oval Opening is a Fringe of material left behind where the cut started and ended on the Oval.
If the Oval Opening has a Feather, Decrease the Oval Rotation.
The Oval Rotation controls for Bumps or Feathers on an Oval.
A Feather in an Oval Opening
Oval Rotation for Openings
See: Oval Rotation for Openings Configurations