Dude, a lot of people score in the 150 range initially and again and again. That's why it's the average. If it was that easy to bring it up, then 165 would be average and not 90th percentile. I still think it'll be almost impossible to score another 20 questions consistently in 8 weeks. If he hits low in October and smokes it in December he's screwed if the school averages the scores. The other route is to get WE for a year or so and take the LSAT next year and shoot for admission in '06.
Again, you'll find some T4 probably even a T3 and with a high UGPA a T2 that'll accept you. But unless you hit 170+, you'll never get into SW Indiana State with dsong...