I like the pressure changes when you draw. Different sized pen/brush would be helpful. As would being able to choose to delete the entire line with the easer or just to erase a little of it off at a time
And yeah, I've spent so much time thinking about how to do an eraser right! I think it will need to wait until the next version of my digital ink library. https://twitter.com/steveruizok/status/1458712896620404742