That's better than the cheap rubber things, but still not really PRECISE, and very difficult

I wanted to make a pin, which finally helps me quickly handwritten notes on the iPad.
Paint goes with this pen relatively well, notes are still pretty clumsy, and you have to really a new way of writing, a habit, with the least possible disruption.
In addition, the pen with batteries is quite heavy, and because you on the iPad if not a lot of space to store the hand, the fast quite tiring.