http://accentsindesign.com/fineline.html
The tut was very interesting and gives me a better understanding of how the frame and machine are set up, like now I get what you are doing. The above address shows where I first saw rulers because they are saying I could FMQ with my DSM without a frame using their rulers. However, I watched a vidio and can't concieve of me feeding the fabric well enough. But, I did like these rulers best because of the handle, better grip and safer looking. IMHO your quilt would look nice if the labyrinth was well defined by SITD. It would show off the over/under of the design.