I had to move my needle from 3.5 to 4.2 to get a scant quarter inch. I watched a craftsy tutorial about precision piecing. They suggested to cut 1/2 inch strips very carefully. Sew them together with a 1/4 inch seam Then your finished strip should measure 1/2". This allowed me to make the adjustment after a few tries. I thought this was a lot of adjustment but it's what my machine needs. Now I have to remember to adjust that setting when I turn the machine on. I wrote in black marker on my machine to remind myself!