I use a Brother PQ1500, it's a 9" harp, but with that I have a MaxThroat system that moves the take up roller as I move the machine carriage. It allows me to stitch up to 15" with my 9" machine. I don't think the are still in production and I understand there were alot of people that had problems with the system. I was lucky, in my opinion it worked just fine for me. But even with out the extra system it can be done, you just need to be more creative.