honestbleeps/Reddit-Enhancement-Suite — pull request #1577 by andytuba (2014-09-13 02:24:24+00:00)
Title: keyboard shortcuts for upvote/downvote (not toggle, always vote)

http://www.reddit.com/r/Enhancement/comments/2fjkhp/feature_request_option_to_have_a_and_z_not_be/

shift-a and shift-z seem like good ideas