My thoughts regarding the discussion on improving handwriting:
I think that getting a fountain pen will help motivate you to get better. The thought that my terrible hand didn't match the pretty pen was enough to make me want to improve it. It also makes things a lot less tiring.
Grip is not so important. I personally use the traditional triangle grip, but I have a friend who writes with a completely different grip and still comes up with stuff like
this. You can see glances of her grip in the video as well.
What is more important is the writing technique: do not move your fingers and wrist. Simply hold the pen (without grasping it forcefully), and use your entire arm, from the shoulder down, to move the pen around. This is a LOT less tiring, and also allows you to do both fine motions and bold motions very easily. This is /the/ most important aspect for handwriting.
Of course, do hold a fountain pen at the proper angle, anywhere from 30 to 60 degrees. Not too high, not too low.
And of course, practice.