When you calibrate, you also need to make sure you hold the pen vertically. Even after the more detailed calibration, you'll get a few minor issues, but it's way better than the 8 point calibration.
Landscape vs Portrait will also cause issues, because the angle of the pen is different, and causes tracking issues. It's imperfect, but I still love how good the pen is on the Surface compared to all the tablets that don't have a Wacom digitizer.
Landscape vs Portrait will also cause issues, because the angle of the pen is different, and causes tracking issues. It's imperfect, but I still love how good the pen is on the Surface compared to all the tablets that don't have a Wacom digitizer.