I'm sick, to the point that I can't really concentrate enough to post. So I'll just put up a link today, to an excellent video of progressively harder exercises leading up to pullup. It's Diesel Crew so you know it's good.
The Ultimate Pull-Up Video
セミナー情報：5/4 八巻祐パスガードセミナー | マーシャルアーツ＆フィットネスLuminous
12 minutes ago