Aside from obvious trolling/overconfidence, self selection at TLS generally explains the 29%. The people that frequent the forum are generally on the more neurotic side of all LSAT studiers and high scorers group together
@mimimimi You should check the instructions for each school, but I've never encountered a personal statement in the wild that needed to be 1300+ words. In my experience, 650–850 words tends to hit the sweet spot. See if you can focus your story.