Unpicking quilt puckers on back how to do it right this time? (505)
First time spray basting (505) on a wall. I smoother, smoothed, smoothed, but I did not purposely have another person help me pull the back really really taut. I positioned the back on the wall so that the seam was perpendicular. (for ease of lining up). Then I taped perpendicular lines and sewed about 10 across the 70 inch quilt starting in middle working out. Sitch length 4, new needle. Using the feed dogs. When I examined in the light of day some lines of stitching had slightly puckered fabric. Trying this again and wan to get it right, again with the 505. Any comments greatly welcomed!