I think that when people try to draw a connection between ACT/SAT scores and LSAT scores they fail to consider how much some people change between their senior year in high school and just before their senior year in college. I for one am a completely different person. I am not saying that my level of intelligence or potential to do well changed, but rather that things like motivation, attention to detail, and my level of preparation have all changed. Unless you are the exact same person you were four or more years ago, I think it is tough to expect the SAT to predict your LSAT, and I personally don't know many college seniors who are the same as when they were 17 or 18.