Hi Alan, the main tip is to expand the Meshing options dialog by pushing the little down arrow so you get more options and then in there set the "Divide larger than" setting to a distance around 1/50 or so of your model's overall size.

When you set "Divide larger than" to a value, it will cause any triangles larger than that to be further subdivided, that's the best way to avoid long skinny triangles which tend to be the easiest to see. You use that in combination with moving the slider over a bit towards the "more polygons" side.

- Michael