I use flannel sheets that I buy on sale at the end of the winter shopping season for backing - which means right about now! I do wash/dry the sheets twice before using, but never starch. The added benefit of using sheets is that the set comes with a pillow case, which can be used to store the quilt or gifted as part of the "quilt package".
Then I spray baste the backing, batting and top together.
It comes out fine when quilted on my mid-arm/frame.
I also use 100% cotton sheets for backing. Again, it works fine.