This piece collected oils from its owner. He attempted to clean it himself with a "leather cleaner". When I picked it up the areas were dark and rough. Through the cleaning process the leather reacted to precleaner and ultra cleaner by turning yellow. Most of the oils are gone but the spots remain rough and discolored. Picture 1 is the spot after precleaner...looks similar to what it did when I picked it up. Picture 2 is right after applying ultra cleaner...see it turn yellow. Picture 3 is after cleaning & rinsing. What would you suggest?
Rachelle