Thanks @theluthier for the answer no probs at all. Yes I did not think even that at concave shapes it might behave right opposite.
Going to explore your technique that in which kind of situation/surface from which angle and with which pressure you use the Smooth brush in the tutorials, thanks just again.
Och and also that with which brush size, because presumably those averages calculated from the surface covered by that, plus also factor that with what kind of movements happens the smoothing. For example for me with the mouse that is slightly more tricky 🙂
