I have a Viking and the first foot I got, the edge guide was so high that the fabric could slide right under, not guiding it at all. It was basically the same as using a piece of tape as you had to watch how you were feeding it all the time. I mentioned it to my dealer who told me to bring it back for an exchange. The new one is perfect, it sits close to the plate and actually guides the fabric, but I can only use it when the seaming 2 raw edges. If I'm making HST (draw line on square, sew on either side) I can't use it because it binds the fabric up (remember, it's an EDGE guide). If you are joining 2 patches along a raw edge, the fabric will just butt up against the guide. If it's getting caught, you just need a bit more practice. If you want to use the foot to sew in the middle of a patch, I would talk to the dealer & see if you can exchange it for a different one & try it out before you leave the store.