I use white Kona Cotton. I never use the white on white anymore. It is hard to needle through and I made the mistake of using it as a backing fabric and went through about 20 machine needles while doing my Free Motion Quilting. Long arm quilters hate to work on quilts containing white on white that is painted on. After 20 years of quilting, I am learning so much about this wonderful art form in the last couple of years since joining this forum.