I don't have the foot, but do a lot of curved piecing with my 1/4" foot. I always think pie al amoad (sp?) with the pie on the bottom and the ice cream on top. Put the "outie" curve on the bottom and the "innie" on the top. As someone else mentioned here, pin the ends and the middle and sew. The more you sew, the more confident you become and the faster you can go. Depending on how big the curve and how big the pieces, I might use a long pin or stiletto to ease the top piece into place during stitching. Hope this helps a little.