I still don't get it about a 1/4" seam and a scant quarter....my logic says that if everything is cut correctly and sewn the same and everything is off a scant amount, it is universally off in all directions and even if wrong...everything should match? I get if you are hit and miss in sewing exactly, then nothing will line up but this question keeps popping up and every time I am confused. I have never tested any of my seams to see if they are "off" and have never had a problem with matching up blocks to their neighbor, but then again I am only 6 quilts to the good and maybe just beginner's luck?