I used to do regular 1/4. And even though I would cut a tad wide, all my blocks would end being 1/4-1/2" short on a 8-12" block. Which wasn't bad, since they were uniform. I asked on here, and the gals suggested I try a scant (by moving my needle one click to the right. I didn't even need to change). Now I'm getting the right size! I just had a quilt top designed to finish at 48.5" x 60.5" and IT DID!