I made a quilt with many different colors on the front and the back is a dark green, I want to quilt the front with a light green and the back with a dark green I am getting a little of the top light green coming thru the back of the quilt so it looks like little light spots on the back. I have adjusted the tension and it gets better but the spots do not completely go away. If I were to sell this quilt would that be acceptable. Or is the a solution for this that I do not know.