I got my 1st Janome in 1997 & my 6600P in 2006, so I've been using the 1/4" foot for a very long time. I love it, but I do have to adjust the needle position on the 6600P to get it correct. The older one is perfect. About the dual-feed 1/4" foot - I really have to move the needle waaaay over. I found the "fence" to be quite long, so I got my Dremel tool out & cut that leg down to like the regular 1/4" foot. Now I really like it.