Originally Posted by Sadiemae
A regular SID is straight. I think if you meander a SID it would mean you just kind wander back and forth across your ditch instead of trying to make it go straight(kind or curvy line). I have seen this around applique's. Great idea. That way you aren't trying to make a perfectly straight line. Others may have a different take on this.
I have a stitch like that on my machine, so it's easy to follow the ditch and the wave back and forth is really even.