I also doubt that pros will try to memorize openings like chess players would; they're very different games and this sort of opening memorization is way more important and efficient in chess than in go.
Not true. If komi (the extra points given to White for going second) doesn't include an extra half point then draws are perfectly possible. One of my friends managed to get two jigo games (draws) out of the three games he played at a recent Tournament.
