While quilting the latest quilt with a wavy grid pattern I wound 9 bobbins for the project. Ran out twice, once about a yard or more from the edge and the other about 4 inches from the edge. However I did win "chicken" about 5 times. Had to laugh at the process! It no longer bothers me to run out of thread, only takes a couple minute to change bobbins, and bury the thread if you have enough bobbins pre-wound.