I have used minky many times for backing. No problems at all. The dimpled I tried for the first time last week with much hesitation but it turned out fine. Always use batting as it keeps from feeling the seams through to the other side. If you want it light, try Quilters Dream Request batting as it is very thin. Fireside is my favorite! My local quilt stored ordered a color card and I chose the color I wanted them to order for me. I do have a long arm...just be careful not to stretch the minky too much with your clips.