hmm i took the lsat without a prep course. my experience: i was averaging well into the 99th percentile on the practice tests (over 20 or so tests) which i was taking in a familiar, quiet, and comfortable setting. when i took the actual, my score dropped some, and i ended up around the 96th percentile or so. why the drop? i was pretty damn nervous on test day. i think that maybe a prep course would have helped with the test day anxiety, but probably not much with actual test taking technique. i guess it's a personal thing. you killing the test as is? do you have nerves of steel? or do u feel lost, etc.?