The needle size that I am using is a size 14bp... I thought I had bought an assorted pack of needles but looks like I bought 40 needles in this size....lol... Tried some new thread just now and it def. sews better and isn't knotting up but I'm having problems with it skipping stitches when I turn a corner while free motion quilting and then on the back of the quilt it is sorta loopy in spots and not all the time does it do this just some of the time. Any idea's what may be causing it? It was doing fine until my free motion foot broke and I bought another foot to use. I also put in a new needle at that time as well so I think I will change the needle now and see if that helps any.