I know this is unconventional, but you may not need the FMQ foot. Since the 301 has a pressure release for the foot, loosen it as far as you can go. If you have one put on a clear foot like the embroidery foot so you can see where you are going, make sure you lower the foot even though it won't cause drag on th quilt, and try again. I do this on my vintage and it works so well that I don't plan to buy the fancy foot. Also if this doesn't work instead of a foot you can get a spring that goes around the needle that is also made for FMQ.