I am making a quilt for my granddaughter's graduation. I want to use whie thread to quilt on the machine, but the backing is navy with tiny bits of color throughout. I want to use navy thread on the bobbin, as I don't want so much wihte stitching on the navy backing. I've tried to adjust my tension, but I CANNOT get it so there is no white on back or navy on top. Does anyone have any suggestions? I'm thinking perhaps the white "dots" on the navy backing will be better than navy 'donts" on the top, which has a lot of white on it. I almost have to use white on the top. Thank you, as you have already helped me on this quilt by my reading posts from many of you.