I asked our resident artist, Dami Lee, about this BrushKnob project on Indiegogo, which gives you one big USB-connected knob for changing brush sizes. The gizmo also includes a button for switching to / from an eraser. Sounds like it would solve a big pain point for all those stylus users out there, of which Dami is one.
Here’s what she said:
“Hmm seems pretty unnecessary! Keyboard shortcuts are good enough.”
So there you go. Nice try, BrushKnob, but Dami’s not interested.