The first Mile a Minute instruction I saw was in American Quilter Magazine winter 2000 issue, you still might be able to those instructions. There was a book called Mile a Minute but it was a totally different method. The American Quilter instructions & crumb very similar. I've done many Mile a Minute, even have demoed it. I've made a few changes along the way just for personal preferences. I like to use a novelty print for the first square or rectangle put on the first strip, that piece becomes more or less the center when block completed & kids love finding the dog or whatever. Also instead of trimming the finished square block with the sides straight I put my square ruler on an angle, the finished result looks like you pieced many small triangles-people are amazed by my talent-LOL. If you have never done one of the blocks that last sentence won't make sense until you are squaring up the block. I love the method, fast, easy, uses op scraps, color of thread doesn't matter so you can use up all the partially filled bobbins. I've made many charity/gift quilts. Instead of using a sashing piece between blocks I alternate a Mile a Min block with a tone on tone block, usually white & add tone on tone borders, makes the colors in the blocks pop.