I took form 3 and from the looks of it, I suppose i will have to retake it.
Hey man just though I would give my input. I am currently studying for the ASTB. I haven't taken it yet, but I have found many free samples online.
One thing that helped me more than anything on the SAT / ACT was practice. It's not so much about material as it is with familiarizing yourself with the content. Take the sample tests like they are the real thing. Look over which questions you missed and why you missed them. If you figure out why your missed them then great. Otherwise, try harder to figure it out and you will usually always get it (and feel awesome when you do). But if not, then of course you can just put it up here on AW and I'm sure someone will answer. Plus it will add to the database so others can look up that question too. There's one trick question on a sample I did and I looked it up and it was already asked about on AW!
Here are a bunch of practice test:
http://www.carolinamarineofficer.com/Astbasvab.html
Don't do the ASVAB accidently haha. If you google "ASTB sample tests," you will get tons more. I was going to buy a book to study for this, but you really don't even need to. All the information is basically here for free. Also I heard the Nautical info is one section where you can boost your score a lot by studying because it is mostly facts. For the math, if you can learn and memorize how to do the equations and everything, then you should do well. Also, I noticed that once you get "used" to spatial apperception, it becomes much easier. Time yourself in the practice so you'll be ready for the real thing.
I'm no expert cause I haven't been to flight school. But I think it would be more beneficial for you to study for the ASTB. I heard that in flight school there is a lot of studying and 3-d Math / Physics. Of course you will have to study and learn that stuff in the future. But why not get a start now right? Math is really all about practice.
Based on the scoring below and you sample test score, see which section you really need to work on. This is how I study and it's worked very well so far. Oh and with the Math, it might be worth buying a book, if you prefer print. They will explain most of the laws / problem concepts that you need to know. But there's a bunch online too. $30 is way better than $10,000
Scoring ASTB:
Academic Qualifications Rating (AQR): This score is affected by performance on all subtests, but
the strongest influence is made by the Math Skills Test.
Pilot Flight Aptitude Rating (PFAR): This score is affected by performance on all subtests, but the
greatest contribution is made by the Aviation & Nautical Info and Spatial Apperception Tests.
ß Flight Officer Flight Aptitude Rating (FOFAR): This score is affected by performance on all
subtests, but the strongest influence is made by the Math Skills Test.
ß Officer Aptitude Rating (OAR): This score is affected by performance on the first three subtests,
Math Skills, Reading Comprehension, and Mechanical Comprehension.
Say how much time do you have?