yes i have the "O" foot which is standard and the idt engaged. I've had it about a month but just started machine quilting. i did the other couple pieces of fabric for this project with SID foot on a quilted block and it was fine. I didn't turn the tension down that much. I thought below 3 would be a mess. I can try down to 1.5 like someone said also. I also just read somewhere about using a Straight Stitch plate might help i did purchase one but didn't put it on.
Those of you with the 7570 which stitch are you using on your machine? is it the very first stitch or another one? if so let me know please.