Just took the ASTB this morning and got a 62 7/9/8. Pretty happy with those scores and want to give a huge thanks to air warriors and everyone who has contributed to this forum. I studied for about a month and a half mainly using tips and past experiences from people who have posted on here and I am really happy to see that it paid off. I used this forum and the plethora of great study materials people have posted, the Barron's book, the apatrick study guide, UAV flashcards that you can find online, much researching of naval flight history, how planes work and operate, and boat/navy terminology. I'll try to break down my experience as best as I can.
Math: This was the section I was worried about the most because I have never really been the best at math, but I didn't really see anything that was too difficult. Some word problems, order of operations, fractional and negative exponents, radicals, and one question that asked what would be the distance traveled around a circle if the radius was 2 cm and you traveled around the circle 10 times. I answered 40pi which I think is right but I'm not completely sure. Didn't see any logs or binary like some people have said but I studied it anyway because you never know.
Reading: Couldn't really tell how I was doing because the test would give me a short and simple passage and then a long and more detailed passage, then another short passage followed by a longer passage. Pretty much if you can read you'll be fine, I didn't really think this was too bad.
Mechanical: A few pulley questions, mechanical advantage, a question giving you people pushing a weight up two different inclined planes and then asking how much work each one was doing (they are each doing the same amount of work). Nothing too crazy here.
NATFI: Most of the time both answers will be pretty bad, just answer honestly, and make sure your answers reflect that you are a leader, are comfortable in stressful situations and times of crisis, and that you work hard and do your best under pressure.
UAV: Definitely use the compass trick, it works wonders. I ended up missing one because of a stupid mistake, but I think all my answers were in the 2-3 second range. Just make sure you stay attentive because as soon as you select the answer it will go to the next one and start the time so be as quick as possible when rotating the compass.
Joystick: Dichotic listening, vertical tracking, 2D tracking were all fine by themselves, but when you put them together and it tests your multitasking is when it gets very challenging. I honestly thought I did terrible when doing them all together, but I ended up with good scores so I must have been doing something right. My best advice is to just keep everything pretty close on the tracking (easier said than done); I had a difficult time multitasking with the dichotic listening and even think I missed a few so don't freak out if you think you aren't doing well. I didn't use the head tilt method when multitasking so that may have thrown me off. When it came to the emergency procedures, with the first one I got the screen that said "aircraft operating under duress" but I fixed the problem quickly and was fine. The next two scenarios went fine. Definitely write the procedures down beforehand.
Best advice overall is to go back to entries on this thread from around 2013 up until now and use all the advice and resources that people have posted over the last few years. In my opinion that will be the best use of your time when studying. Brush up on math skills, basic physics, and study naval and flight information. Relax and execute on test day and you will do fine.
