"This script select faces with an area minor than the value specified. Good to find 'hidden super thin' faces in low poly models. Only works with editablepoly objects. Sometimes you should pan a viewport or move the mouse to refresh the face selection.
Ultimate test mode:
When on - every vertex of the model is connected. So every edge became a face. This way we can really test every face in the model - not only the user connected ones. If the script found no problem - the connect operation will be undone. If the script found any faces - you should see where the problem is and undo when you are ready. A message box will remember you. You can use the undo button in the script or ctrl-z - it's all the same thing."