I took a class using the ruler a long time ago- didn't finish the quilt though it wasn't a bad technique that I recall. My friend did a border for her round robin using it and finished but hated the bias edges- she had to staystitch around her border and warned the next person about it being bias (they weren't thrilled). I don't remember the waste bothering me at the time - I dn't mind scraps since I like string quilts and scrappy quilts but not small pieces. I just didn't like the bias