This post is pretty old. I now have a Baby Lock Jane on a frame and have a stitch regulator. I dont recommend a domestic machine on a frame as it is a big hassle to use. But I do like the stitch regulator that cost an extra $500.
I am constantly having to run from the front of the frame to the back just to raise the needle if I need to rethread or end my sewing. To rethread I have to push the machine to the end of the frame since it threads from the side and the bobbin is a big hassel to refill also. The sewing area is also only about 4 inchs so meanering is about all I can do. Blocks are to big to put a design on. To anchor the sides of the quilt for pantographs I still havnt figured out but find you do have to sew the sides down or the needle will get stuck.