It would really assist the artists if the link to "view card preview" on the "edit custom front" page would actually link to the "print margin preview" page.  
 
This way artists wouldn't have to guess where the safety zone is for custom front cards. When we create the coordinates for the custom text we really have no visual reference for safety zones or margins. It is not impossible to double check but it is really cumbersome having to actually create and save the card first, navigate back to our edit card page and use the print margin preview.  
 
When I actually created my first custom text front card, I thought that the coordinates would automatically be treated as if it was already placed inside the safety zone. Since that is not the case we need visual references.