Learn to use the 4", 5", 6", 8", 9", 10" and 12" GO! Mix & Match Block System with Eleanor Burns. Eleanor Burns has directed her engineering skills to her new "best friends", the amazing GO! Cutters. A "quilt in a day" is now a "quilt in half the time", with Smart Stacking© and Smart Cutting©, just to name a few new techniques. Blocks are quick, precise, and fun to make, and most take less than a half hour from cutting to sewing.