I have a Singer 99 and it came with a zipper foot on it. I ordered a low shank foot from Sew-Classic and when I attach it it doesn't really press down at all on the fabric enough to scoot the fabric across the feed dogs. I can pull the fabric right out from underneath the foot. Did I get a defective new foot? This is the one I purchased...
http://shop.sew-classic.com/Low-Shan...5321-45321.htm
Any ideas? Thank you in advance.