I have a Janome 6600 with a quarter inch foot; however, that foot doesn't give me a scant 1/4" unless I move the needle several notches to the right. I have to do something similar on my Janome Jem. Just figure out which setting on each machine gives you the same scant 1/4" measurement and adjust them accordingly. Then you can use either machine interchangeably. This assumes, of course, that you can adjust your needle positions.