I am making a quilt for the BOM out of a book I bought from the LQS. Others and myself have found errors from the book while making the quilt. The LQS really didn't want to admit the book had errors but with several of us questioning the book directions, they admitted there were errors. It has been a great learning experience, in that i know it's not always me making the mistake. Pros and Publishers do as well... Can you adjust your triangles to the correct size? I did mine with paper til I got them the right size...