Cant work out if this is a good idea or not.
<a href="https://www.youtube.com/watch?v=kXcXSywPYQw" data-cke-saved-href="https://www.youtube.com/watch?v=kXcXSywPYQw">
When working on a bird in flight its often possible to get the contrast fringe,look at the leading wing edge,often this is no problem but sometimes it is and this is one way to remove it.
Just did a quick job on this one.