The plastic discs concept was new and first bit unusual for me. So far I had always sticks with rubber cap. The idea of the disc works in practice but really good. While I was covering a large part of the image with your finger or rubber cap, I can see through the transparent pane is still very good to see on the ground and thus draw more specific and write. The writing and drawing also works very well. The speed is similar to the rubber caps pins and the accuracy is great. Straight lines with no jumps are no problem. A big advantage is the drawing points. By adonitol disc pin that works very accurately and safely, while fingers and rubber caps pen are less präsize and sometimes tend instead of one point a small line to draw.
The disc pin of adonitol "bangs" rather a little harder on the touch screen. That does not display because the disc is made of plastic. A rubber caps pen uses more soft and supple. The writing and drawing feeling is for me the rubber caps pen a little better because it feels more natural.
In short, in terms of precision clearly wins the disc pin. The writing and drawing feel like it better because of the naturalness rubber caps pen. All in all, I find the super adonitol pin and use it in the future.