<p>I didn’t score a 2400 (got a 2360), but I have two friends (and a quasi-acquaintance) that did. For my two friends, both took prep courses, but that’s not super necessary. Just take the practice tests from the blue book and review the questions you got wrong. Its also helpful to form your own word lists (thats what I did) from words you don’t know and write them in a notebook, as well as their definitions. This is also a good way to naturally increase your vocab.
For the 2-3 months leading up to a test, get a manageable word list, cross out all the words you know, and look the ones you don’t up. Try to take practice tests every weekend.
Specific methods of doing well on each respective section can be found in this forum.</p>
<p>Also, a 2400 isn’t necessary to get into a good school (looking at the forums, many get into harvard, etc. with 2200’s, 2300’s). Focus on doing other things too- SAT’s will only take you so far.</p>