I developed a new roll this morning. I tried some of the changes suggested. 1) Up and down firmer agitation for 20 seconds every minute this time (instead of 10) 2) Fixer was for 7 min instead of the previous 5 I'm attaching an image of the new negatives. They look more contrasty and generally better. But I'm afraid the halo or foginess between the images and near the sprokets still remains. Can't see any effect on the actual frames, but will know for sure when I have a new scanner.