I am using the 121 Ohm setting on my IO. Lower than that doesn't sound as good to me. For VTF I use 1.9g. For VTA I shine a light from the other side and use a magnifier to visually set the stylus to be nearly perpendicular to the LP but raked slightly back. If you get the light just right it will shine through the stylus, making it more visible. I don't think using the body itself as a reference is as reliable as looking directly at the stylus itself.
