@kwgardiner – If you go the FSDirectory in your settings menu, and choose “No” under the drop down next to “Apply CSS skin to thumbnails”, then the plugin will respect the featured image on the profile as you entered it without any skinning or resizing.
Another option is to leave the CSS styling turned on, but then override the ‘fspic’ class, which is what determines how the images are styled. You can do this by defining your own fspic CSS class that displays the image however you’d like using the faculty-staff-style-override.css file in the /css directory of the plugin code.
If you don’t have access to modify plugin files directly on your server, you can use another free plugin of mine, CSS Theme Override. Once this plugin is activated it will give you a text area box in the plugin admin that will let you specify your own fspic class.
I’ll mark this as resolved, but if none of these solutions work for you, please come back and let me know.