I’m using a Note Pro, all the samples in the demo app seemed to work but I couldn’t work out what they were intending to show. I picked the one with the least lag and used that as the basis for writing my own app.
There’s still a lot I don’t understand though because of the various layers in the SDK. Documentation is poor and the functionality is very limited. Most of it takes place deep down in a native lib which you have no control over i.e. how you draw the line in low-latency. The only option is to immediately redraw it after the pen has stopped moving which is a bit yuck TBH. It means that doing any kind of sketching app is out of the question, but I could do a note taker with shape and text recognition albeit with a slight delay after drawing to rendering.