I have over 1500 pos.(715 pos. from different buyers) and no net. or neg. I leave pos. the day paid. and have never asked for a feedback. I often mail before paid to known buyers. Never had a problem.Also give pos. feed before paid to known buyers. I have found 99% of my buyers are great honest people. I make mistakes, and correct them right away with bonus chips added for my honest mistakes. ( like running out of a chip or miss grading ect.)My only problems in over 2000 sales have been buyers with under 10 feedback. ( only 3-4 ever). Now, keep in mind my average sale is 10.00-12.00. Also, never had a lost bubble mailer by the USPO. All I can say is 99% of all chippers are honest, fair and reasonable people. I bet a much higher % than other hobby's. Why, I don't know?