You may wish that they would add a 1/4 inch on every overlap of a seam and it doesn't seem like that much to us but to them all they see is maybe 10 seems on each plane and a 1000 plane order. That adds up in a hurry to a lot of yardage and cuts into the minimal profit they make in China. In mass production where EVERY dab of glue is accounted for it all adds up.