I don't know how common this stitch is, but dd's basic Bernina has what would be a triple zig-zag except it's rounded, like waves or a snake or something. My twin-needling is pitiful, so I've taken to using that wave stitch on anything knit for females :/ . Sorry, boys, no knits for you :doh (actually, after this thread I *will* try the triple-straight, I forgot about that one).