Lamy Safari Medium or Fine

After using my first Lamy Safari Medium point pen for a week; I decided to buy a Fine point Lamy Safari. I'm really glad I did. I like the Fine point much better. My terrible writing style looks better and is more legible with the fine point Lamy Safari. I also switched the inks from blue to black. Yep I like Black ink much better than Blue ink. I'm considering an extra fine point to write with or at least to try out. Someone also suggested that a broad point was good for signatures. I got that on my wish list too. What's your favorite Lamy nib size?