I prefer to puddle even when doing straight stitching. Just my preference, you will have to try both to see what works for you. Recently I have given up on STID and stich beside the ditch. Preferably on the side the fabric was pressed, for extra security. You can see the quilting thread but the little bobs and weaves to the left or right don't show up as much. (at least to me). What drives me crazy about STID is when the thread disappears and reappears.