I never understood why someone would want to tilt their keyboard that way
None the less, good work. Every second post i read makes me want a 3D Printer even more... This Forum turns out to be quiet an expensive website )
Depending on placement between chair height, keyboard height, and height of the person, it can be more ergonomic than flat or negative tilt. The higher the keyboard is in relation to the body, the more angle is required. The lower it is, the flatter or negative tilt may be needed or wanted.