Scrape tool seems to ignore depth / pressure settings, and behaves as if depth is at 100% -- here is example video, depth is set to 1% and I'm slightly touching stylus.
All others tools (well, airbrush / voxel clay / extrude) behave as expected, so it's not system/stylus issue.
Maybe it has something to do with voxel size (it's kinda large, see the mesh at the end of video).
Or maybe I'm just doing something wrong...