I wouldn't do 4 tests over two weeks.
Taking a test is a "check" point - it's to see how you're doing. But you don't actually learn a ton just from taking tests over and over again. So that's not the best use of your time.
I wrote a long post a while ago about what to do over the final two weeks - search for that (and Eric might have added it to the wiki - I'm not sure, but you could ask him if he did).
The nutshell: Take a practice test right now (today!). Spend the first week reveiwing that tests and specific topics / question types based upon your performance on that test. Decide which topics are your strengths vs. your weaknesses, and identify some topics that are both serious weaknesses and aren't that common anyway. These are your "giving up and moving on" questions, when necessary, on the test. Do practice questions in sets (eg, 10 or 20 at a time).
5-7 days before, take your final practice test. (I've said this before and I'll say it again: this test is like a marathon. You don't run a practice marathon within a few days of the real thing.
)
Spend up until 2 days before the test reviewing that last practice test and anything else you need to review based upon your results. Also, recognize that there are going to be certain things you just aren't going to "get." Identify those and DON'T study them - just acknowledge that, when necessary, you'll pull the plug on those on the test, make a guess, and move on.
Final two days: high level review only. Get ready for the actual test day itself - ID, food, get good sleep, eat well, etc. DON'T study for more than about an hour or two the day before the test - you aren't going to learn more stuff at this point, so all you'll do is psych yourself out.
Good luck!
