Just make sure you're running 9.3, that's all, also turn the pressure sense up. I just upgraded to a Wacom Creative 2 anyway, a better solution.
9.3 isn't out yet, so I guess I'll have to see if that makes a difference.
I picked up a Jot Touch and it DOES NOT work on the iPad Pro (9.2.1).
It works on the iPad Mini 4, but not even close to the Apple Pencil - basically the same as any of the other Bluetooth stylii out there.
I seriously want to know HOW you're getting these to work. My Wacom Creative 2 DOES NOT work on my iPad Pro, nor any of the other iPad Pros I've tested them on (including ones at the Apple Store with the Genius).