Did you press before cutting OBW fabric?
It doesn't look like the directions to the OBW quilt (I have the book and I've read cutebun's tutorial) include pressing the fabric at all before starting cutting. I was wondering if that was correct? Luckily, my fabric (purchased online) arrived in pretty good, smooth condition so it shouldn't be a problem. I am going to cut it along the middle fold like cutebun's recommends (the book has you working with strips that are 42 inches in length with is pretty crazy).