I have never heard of a SITD ruler. Is it for LAM? or what? More description please.
peace

Oh, you are just using it for a straight edge? A school ruler would do just as well, wouldn't it?

I tend to avoid stitch in the ditch, because I can't ever seem to do it without wandering in and out of the ditch. But when I do need to do it, I use a stitch in the ditch foot with a guide up the center, which works quite well, I can't imagine trying to handle the quilt and a ruler on a domestic machine. There must be an easier way!! :)

Not sure if I would like one..I would have to see it in action.

I've never heard of a SITD Ruler. I wonder what it does. I use my SITD presser foot. No guesswork. Really easy.

After seeing a demonstration of a straight ruler on a long arm, I ordered one (and a curved one because, why not?). It's 1/4 inch thick, and is designed to slide along side the hopping foot. I am really good at doing SID with my DSM, but I couldn't do free motion on it to save my life, whereas on the long arm, my free motion looks good, but I can't keep it steady enough to do SID to my satisfaction. I'm hoping the ruler will give me some stability. At least, it seemed to in the demonstration. She even showed us how to use a straight ruler to give stability when doing curves so it didn't look "jumpy", but I want to try baptist fans so I went ahead and ordered a curved one too.

Grannie Annie, my understanding is that a regular school ruler wouldn't work for a long arm because it's not thick enough and could slide under the hopping foot.

There's a ruler called the line tamer. It's made for longarms machines for stitch in the ditch