I love my Zipper System. I purchased the 144" long Zippers from Jessica Schick at http//:
www.digitechpatterns.com. I have the sets on my machine plus 3 extra sets. I can switch projects easily when needed or put on a practice piece to check something out. I staple the backing fabric to the zippers with a speciality stapler that crimps the ends to the outside instead of the inside of the staple. When you are finished you just pull and the backing comes off the zipper then you just pick the staples out of the zipper.