My first and only strop is a SRD. When learning to use it, I put some minor nicks on it. These are more like just surface scraps than nicks. I don't feel as if they hurt the performance at all, and I can't feel them while stropping. That being said, would there be any advantage to sanding them out, or should I just leave well enough alone? If I were to sand them, how is that done? Thanks in advance to all.