I have done an oversized twin and it was nuts how hard it was. i was sid around star points though. I will not be trying anything larger than a twin on my domestic again. but I don't do larger than lap or baby size. for the most part. working on a full size right now and it is going to be sent out for quilting. good luck if you do try it yourself. and i would roll it in a tube to fit in the throat area. it will help.