I have never used a metal staple on anything that is in the area of any chip I own; especially on a Mylar flip. Seen too much chip damage to even consider it... nor would I buy a chip at a show without asking the seller to please remove the chip so I can properly inspect it for flatness, scratches and to be certain nothing is damaged on the litho inlay -- especially when I see an excess of staples or staple holes on the flip. Nice to read someone else doesn't use staples. Bravo. 😀