Guide coated the fender, sanded the same, and found two low spots at the lower part of the fender behind the wheel.
  It took a very long time to do.  Seeing as I had back surgery,  my wife helped with all the heavy work, like jacking up the car so I could sit and sand for ten min. and then rest for 20 min.  Working on the car helps me stay sane.  You can only sit and watch TV before you start drooling and waiting for the mail to read the ad papers.

I used a Scott pad to prep the area for a glaze coat.  Going to get a heavier grit (120 or 80) for the center of the low spot.