Took a Powerscore weekender, then studied more, and ended at 171.
i think just practicing over and over again is the best way to study. i never really took a class...but at the time, i was more motivated to just do the studying on my own. it actually helped me focus a bit more...i was a bit backwards too - i was usually perfect on the games. LR and RC were my problems...i just got better at them after doing 35+ prep tests.