I used an older version of the Flynn system when I had a Bernina short arm. for me, it was very awkward to use. I think it would be worth learning with a new one and my current Janome, but I simply don't have the spacve for it any more. google John Flynn. He has a great web site. My DH met him and was very impressed with engineering of the system.
Pepita, that is a lovely quilt.