While I do not expect it, when it happens it is always nice. When a shop person goes to cut fabric for me, I always look carefully at the fabric as it comes off the bolt and if the cut end is not square, I will point it out immediately and suggest that they measure from the shortest point. That being said - there is a place in Maine (Mardens which is a general clearance center with a huge fabric department) that I go to occasionally where I have gotten almost 1/4 yd extra on some cuts and the way they measure it on large yardage pieces sometimes more!!