I wouldn't invest in this frame because of the width limitation, plus I know a lot of people never master using it.
Just as an aside, it's easier to loosely accordion fold the quilt under the machine arm than to roll it.
I would advise instead investing in Marti Michell's book that explains different methods of reducing bulk while quilting on a DSM. Here is a link to it on Amazon:
http://www.amazon.com/Marti-Michell-...dp/B0002J5GX0/