Great Pattern. Used a “J” hook instead of “I”. Since I used a larger hook, I did not do back loop only in the rows called for, I did both loops on all rows, and I did one or 2 fewer rows than pattern called for. Color pattern I used: 5 rows red, 5 rows green, 5 rows red, 4 rows green, 4 rows red, 2 rows white, one row black. I would have done 5 rows (I the lat set of green and red , but I ran out of green.) I used Hobby Lobby I love This Yarn in Red, White and Limelight and Red Heart Soft in Black. One skein of the green, Less than 2 skeins of the Red. Almost finished-Need to weave in ends and add some ties. Measures about 47” straight across point to point. I had tried a couple of other ripple style patterns but did not like the way the they didn’t match up right-too big of a gap or overlapped or center hole too small. This pattern matched up perfectly! Finished Dec 3, 2013. Total time 15+ hrs.