Ingo, I don’t like to sharpen too much, maybe because my eye sight is not perfect and blurs my world, I don’t like to see my images too sharp!
Ragarding the contrast threshold, indeed I tried to raise it, but depending on the scene, sometimes before 50 I start to see the bad behavior of the fast-pass on sharp edges.
Look at the antenna stems below (300% crop):
On side note: I tried to see what False color suppression does, but it doesn’t play well at all with the 4-pass algorithm. Maybe it should be disabled when 4-pass is selected.