I just called my favourite bag and shoe repairer / cleaner and they told me that they would be able to clean up dark leather handles (from being held by hands). Granted, they were not shown the actual bag. I only asked them over the phone. Do you think its possible? They have thus far done a stellar job on all sorts of bag/shoe repairs etc (for high end items), and if they can't do something, they always say so upfront. Thoughts? anyone had luck before?