I agree with the others. It sounds like your quilt is not taut enough when basting. I use Sharon Schambler's method. While it does take time, I put on the music and have come to enjoy it. I think of how I am going to do SID before I baste. That way, I am able to baste all the vertical straight lines without clipping any basting threads and then I clip them when I do the horizontal lines. I find it works for me.