I am not quite sure how this happened, but for some reason my first set seemed to come together with straighter seams than the second grouping I did. Harumph! On the first group I went from using the 1/2" seam to a 1/4" seam, while yesterday's group went from 1/4" to 1/2" - and for some reason my machine was not wanting to keep straight.
Hopefully, once mixed in with the dozens of other blocks Becky will be receiving, the flaws in mine won't be so noticeable. In the future, though, I prefer my strip piecing to be a little less regulated. Just sayin'.