I use Schmetz sharp or microtex 80/12 needles in all my vintage machines when I'm piecing quilt blocks and I don't have any skipped stitches or other problems. I haven't had good experiences with the Singer needles that are sold now.
When I quilt with my full size Singers I use a 90/14 or
100/16 top stitching needle. The smaller the number, the smaller the needle. Thread is the opposite.