I stacked the 3 monongahela shawls on top of each other to show their lace band and repeat variations. The color is off as I did not change the camera settings from night to day but you may notice that the bottom 2 have the same number of repeats and yet the larger one is better to really wrap around. The smallest has 3 times as many repeats as the others.
I also notice that my gauge for each is a bit different. The medium shawl has a heavier weight of yarn yet has about the same gauge as the large one while it seems that I loosened up a bit with the small pink shawlette.