I tried many buttonholes on my 328 using the zig zag flat cam. I can tell you for sure, like Tammi, I prefer the buttonholer attachment than trying to make one just using the cam! I love my 328, but I used to make a lot of buttonholes on clothing, and I'll take the attachment any day! I even have a couple of slant-needle buttonholers my son collected quite a few years ago that I've used on the 750 T & S machines, which will also fit my 403. So, before I'd try a zig-zag attachment, I'd get a machine that does zig zag, makes other pretty stitches, and put a buttonholer on to make buttonholes! JMHO! Rodney, sure is good to have you back active on the board!
Jeanette