I went to a quick seminar at Sew Expo last year about this. A couple of hints, that I have used, a vinyl table cloth on your work surface lets the quilt "glide" with the emb. arm. Scrunch or nest your quilt around the machine to keep it from pulling.
I've done two this way and like it as another way to quilt my quilts.
Oh, almost forgot...they also said to put your machine on the floor if your table is not big enough for the quilt and machine. It seems one big problem is the weight of the quilt pulling the emb arm and fabric in the hoop out of alignment while it is stitching causing errors in the stitching of the design.
Hope this helps.
Kirsten