are you meaning hand piecing or quilting? i ALWAYS backstitch when piecing- i want my pieces to stay together-
i do not back stitch when hand quilting- i bury a knot.
but in piecing i load 4-7 stitches on my needle- pull through- do a back stitch and load my needle again- so every few stitches is a back stitch. I learned this from being a Jenny Beyer Fan...i love the precision of hand piecing.