I also think the scant 1/4 inch looks skinny, even though the 1/4 inch vs. the scan 1/4 inch is such a tiny difference. I get so paranoid about a seam ripping out on a quilt, so I tend to go with the whatever seam comes from using the 1/4 inch foot. My blocks are often a bit shy of the intended measurement. It works for my quilts, but probably not for a block exchange.