Save the selection to a channel. Select delete to clear the selection and create the rough edge. The final effect is shown here. Drag the selection channel to the new image. Transform selection to reach the image edges and complete as for the initial image.
Consistency is guaranteed, too.
In fact, it is often worthwhile to create a separate document that contains nothing but selection channels for each project. As you create special effects, drag the channels into the master document. Inc. Legal Notices .