I am very new to wood working so this might be common knowledge among you more experienced guys. I was talking to one of the drafters at work last week, and somehow we got to talking about the fact that he is an ex-cabinet maker, and finishing wood. He told me that he would use brown paper bag from the grocery store in his finish sander as a final step. I tried it this weekend and it works beautifully. I got better results than I have been getting with my buffer,worked well on the copper spacer also. So just thought I share this , and I am also curious if any of you guys have tried this.