A couple of years ago I began long arming for a sewing buddy. I had done several of her quilts with no problem. On this one particular quilt when I got to the end, the bottom border was way too long. I removed it and took out the extra; thankfully it was the last border put on and not a side. I later did ask her how she 'measured' for her borders and suggested she measure through the center of the quilt method - which she wasn't doing. She was grateful for the suggestion and her quilt borders have been better since then. I was leery of bringing it up as I didn't want to feel like I was being critical of her work or knew more then she did (I don't -I'm always learning too,but she was grateful for the help. She makes gorgeous quilts.