Not just you... It's definitely easier to edit paper, although I don't think it has anything to do with a pen! If I had to guess I'd say that it gives a small break between writing and editing, and it is a completely different setting from your computer. Try writing something by hand, and then retyping it on your computer, see if that changes anything! I forgot- reading aloud is good too . I hate doing it, but it does help!
I don't like writing the first draft by hand. I think it's a waste of time and when I re-type it I have to keep looking back and forth and that's annoying. I think it does have something to do with a pen for me. I like to edit with a pen that has flowing ink and makes little scratching noises. Lol!
With new writers appearing and new stories being written, thought more techniques or ideas might be put into this thread like starting with a question, then repeating it at the end of the story or something...
Also, you could add writing while listening to music... PLEASE!!!! I BEG OF YOU, YOUR MAJESTY OF WRITING GODESSNESS!!!!