Probably the best pen for handwritten notes on my iPad. Test it now for some time in seminars and write so eagerly notes in my PDF's. For the Jot Pro is ideally suited and exceeds the silicone-like tips of the pins most by far. Under the small plastic disc is a great place to see where exactly the line is produced and where it is writing. Also sliding across the display is very pleasant. Protectors are not necessary.
All in all a super pen and for my purposes there's nothing better for under 80