I too have made several log cabin quilts, started out years ago making the first one and having to square up. I recently started making Eleanor's Orion's Star, I couldn't find my book anywhere so I decided to watch the video and realized why I had to square up because when I was pressing the logs evidently I was stretching everything out. This time I hit the seam with the iron but that's all. I'm working with a fat eighth bundle that I received as a gift so I am cutting the 2 1/2 inch but not the length initially.