|I have found that I have more control when I install a zipper if I can use my reg. Zig Zag foot. It's wider and provides a more stable grip between the zipper and the feed dogs. The only reason I ever used a zipper foot was because the pull would not allow the reg. foot to be used. SOLUTION: Get the zipper several inches longer than you need and sew the zipper in with the pull well above the garment edge. I have put in over a hundred closed end zippers with this method. Unzip the zipper a few inches and do a satin stitch where you want the new stop to be, and VOILA, zipper is in.
The second plus to using too long zippers is that you always have the right length available, and third plus is that the metal top stop isn't hidden to nick your needle when you finish the neckline (and cause extra bulk)