I have not done "surf song" but have done the twisted bargello from that book, and don't think the fat quarters are long enough, even with 2 of each color. You need the length of about 42" for each of those strips--and fat quarters are only about 22" long--right? That would mean you needed not only double the width but double the length as well. I am pretty "math challenged" myself--but am thinking I would not want to take the chance to run out of fabric after all of that work.