This is something that seems to be a problem. I would talk with your dealer first before doing anything. Brother needs to be told about this difficulty so they can make a correction. I had Harriet Hargrave drill out the center section of my Bernina walking foot, I trusted her since at the time she had a Bernina dealership herself. This was the first walking foot Bernina manufacture and I think they eventually made changes with newer models. Companies do listen if we only take the time to tell them what is wrong with their products.