:D Gee that's interesting because I thought all Laced edges were "Spanish Braid" LOL
Seriously though.. it's a blanket stitch.
I'm fighting a migraine now. If I have time today, I'll experiment a little for you. I think it can be done with two needles, I just have to spend some time with it.
Also PM me your email... I think I have something in pdf that you might like to have.
Syl