So I'm in a bit of a predicament right now, as I have the GMAT scheduled for tomorrow but I'm thinking another week of studying could really pay off. I already took the test once, getting a 700, but I decided that I would take Knewton's offer of "Increase your score by 50 points guaranteed!". My original score was very high verbal and mediocre in quant, so I wanted to get that quant up. In the end, the Knewton course has failed miserably at that and is clearly not tiered towards the 700 test taker.
So, I've spent the last week really cramming in on more advanced concepts such as probabilities, combinations/permutations, and number properties. This has helped, but it seems that I'm now missing some of the questions that I had complete rhythm on in the past, and my timing is not up to speed. On my Knewton CATs, I'm generally scoring around 670-700 (though on two exams this week I got 610s... this inconsistency is another reason I haven't been a fan of Knewton) and on my GMAT Prep I've gotten a 700 and a 710. CLEARLY, I haven't improved that much.
SO, my question to all of you GMAT and admission's pros out there is, should I just take the test tomorrow, maybe get lucky and score well (I know I already did well, but I'd like to get my score to at least 730), or just cough up the $250, study for a few more weeks, and go in knowing that I'll dominate the test?
If I don't improve, how much will that hurt my chances? Is is worth just waiting until I can guarantee myself a higher score?
Also, suggestions on what to study would be a great help!