I am definitely going to be making test blocks starting now. Over the last few days, I made 2 projects from a recently published book based on a beautiful new fabric line. The designs are lovely and the book is full of patterns. But Both projects had pattern errors. Fortunately, one told me to cut too long by an inch or 2. The other involved vague and incorrect cutting instructions for a wedge. I reverse-engineered that one. I am reconsidering making a larger quilt from that book.