One thing to consider when not using batting... Is the color of the backing going to give you the effect you want on the front. I almost made a terrible mistake by not using batting. I'm glad I realized it soon enough. The mango colored Minky backing would have darkened the light cream color in my quilt top and the seams would have shown - not what I would have wanted. You could always just use white flannel in a situation where batting would be too thick.