It has been a long time since I did a Lone Star. I found what I did was mark with pencil the 1/4 inch seam (stitching line) just where the diagonail sitiching line is on both sides of all the sections. I then stick a pin straight down through both Xs (the line and the stitiching interesect). With the pin still stright vertically, come in gently with a pin to secure the fabric in the correct alignment. I then would baste the seam with 3.5 stitch seam. Check and make any micro adjustment. Good Luck !! Hope this helps. Forgot I had this UFO !!