My two straight stitch only machines came with organ needles and recommend using them. You can get deals on them and don't seem pricey to me. Sewingpartsonline.com have them and sewclassic and All brands, I'm sure there are others. I use Schmetz sometimes, because I have them. Considering everything else needles are very cheap. I use size 14 or 16 for machine quilting. I use a new needle when I start quilting, if the previous needle is still sharp and no burs I use it for piecing.