The following strips are about 21-22" long, in widths of: 2.5", 2.5", 3.5", 2". I sort them trying to keep a contrast between the strips. I also use strips in lengths of 10.5-11". You can use the WIF, however I like to cut them down to avoid wavy seams - they happen to the best of us.
After sewing the sets together, press all seams in one direction. Now cut them in the SAME widths, same order: 2.5", 2.5", 3.5" and 2".
Now "FLIP" the 2nd and 4th within each strip set. Notice -- No seams to match!
More play: Mix them up between strip sets. Notice that one of the strip sets was a little short. Save the good ones to mix with other blocks that come up short! The finished block is 8.5".