Triangle Thingies could be your best friend if this is your problem. I love mine since I can use them to pull my Incubator into a semi-asym alignment. I have the line in the "triangle leg" that connects to my left shoulder and right foot areas tighter than the ones going to my right shoulder and left foot areas. This effectively pulls the quilt slightly off-axis. They also help to pull up instead of just out, which I think would help your problem.