I'm a total newbie, so forgive my ignorance - I'm trying to fix a chair (see photo). My problem is that the heavyweight hide I purchased has become unevenly discolored by exposure to light. I weighed it down with books to flatten it for a week or so because it was tightly rolled up. It was inside, but had limited western sun exposure. My plan was to use neatsfoot compound to allow it to darken and soften a bit. (As an old horse-person I always liked how that worked with tack.) But then I saw that the leather darkened except for the areas where the books were. I called Tandy, where I purchased the whole hide, and they said that even dying the leather might not help with this two-tone problem. Has anyone had an issue like this? Do you think neatsfoot compound would help smooth out the color differences? What about putting it outside in bright sun?
Additional photos with more detail at the links:
Chair I'm fixing (for context) https://drive.google.com/file/d/0B1x9mbciSM17QzM0dnZ6aUVvWGM/view?usp=sharing
New leather closeup of a problem area: https://drive.google.com/file/d/0B1x9mbciSM17SkdUMnRiMVBSN00/view?usp=sharing
New leather, view of whole hide: https://drive.google.com/file/d/0B1x9mbciSM17YkhRMk5uMHlVMDg/view?usp=sharing