[bicolao]

As someone who also uses emacs, I type C-a a so often that sometimes I do the same in emacs and it leaves an extra a. It's quite rare though.

[jbaber]

As a vim user, this was my attitude about ctrl-b ctrl-b for pgup because tmux uses that. But I got used to it. Like many a screen convert to tmux, I used to map to ctrl-a, but I found myself actually getting pinky/wrist pain from using just my left hand. As a non-emacs user, I'm not okay with that :P So ctrl-b forces me to use two hands.