I quilted a huge one a king with a full drop. Never again. I did get thru it by conquering it in 4 sections. If you can get to the center, it can be done. If you can't get to the center, I'd get a long armer to do it. My advice is to do an all over. I did mine in what I call a loop de loop. Whenever I got into a corner with my quilting, I could loop de loop out since threads crossed over each other in the design. As long as I didn't go straight, it worked.