When looking around trying to find some help on reducing oozing, I stumbled on a great article by Matterhackers....https://www.matterhackers.com/articles/retraction-just-say-no-to-oozing...and they talked about the importance of retraction, travel speed etc.

For owners of their product they will send you the file that helps you test your retraction settings. However, I don't have any of their products so took 5 minutes and created the attached STL. Hope it helps someone!