OK I'm stuck!!!I am an avid hand quilter but after listening to all of you i am open to change. i just completed a fall wall hanging and thot i would try machine quilting. My local quilt shop suggested the invisible thread on the top. i am trying it but not real thrilled. Is this something you get used too! Also my machine (Viking Designer I calls for a special quilting foot. i did not get one with my machine and I have a feeling it's going to be expensive to buy one. Does anyone have any suggestions as to using something else instead of the invisible thread and do i really need a special quilting foot?