Hi, I'm new at quilting. I'm TRYING to machine quilt a baby quilt. I'm just trying to stitch in the ditch or at least go very close around the blocks. My problem is that whether I use a regular foot or even the even feed foot, the stitches come out extremely small and look really awful! When I do a test run with a small scrap of sandwich fabric they look fine. I don't get it! I have two old singers from the 70's and 80's but I don't know why that would make a difference. Please help! I'm getting so frustrated and obsessed, of course! :(