Is it that leather that's not quite suede, but it's more of the softer type of leather that's used on expensive purses and handbags, rather than the thicker, stiffer usual saddle-leather? I haven't had any experience with that type of leather on a saddle. I do have some other things made with that type of leather, and as long as I keep them conditioned (not oiled - different things altogether), they seem to do fine. So sorry, I can be of no further help. Do you have a picture so maybe someone will recognize the leather and come up with some better ideas?
They're not scratches, just character marks that document your adventures