I’m refinishing a 1962 table and chairs, the chairs are birch with solid maple seats. I chemically stripped the chair legs and rough sanded all of the vacuum and mop dings out of the legs. I used lacquer thinner to check for any marks that I missed but I’m still getting marks or discoloration and I can’t keep removing material as it will change leg diameter. Any hacks to get these(photo) out? TIA