I've only used a sheet for backing once. It was a practice quilt (my first quilt) to see if I'd like the process. I loved and still love the process. I machine quilted it on my domestic machine and had NO PROBLEMS. It's been on my bed for years now and no holes. It's wearing fine and I don't expect it to wear out any time soon. I've not used a sheet since, but now I'm considering it. Thanks for all the good advise!!!
Doug in Akron, Ohio