I've only used neutral saphir cordo creme so far but mine only have two wearings. It was only an initial treatment since they were likely sitting for a while.
Saphir also has a lighter cordo creme called whisky. However it may be to light for your Walnut depending on the batch. (some were lighter than others)
However for scuffs like mdubs said brushing and a deer bone should get most scuffs out.