I don't do math; most of my sewing without a true pattern is trial & error. Based on a hexagonal table topper picture recently posted on the board, I made one & really liked the easiness of making them. However, I would like to make one a little larger. Can I use 5 or more 2-1/2" strips? Is the 60 degree angle still what I'd use? Has anyone made a larger topper than the one created by the 4 strips?