How much advanced engineering did you see on the ASTB? None right? It's pretty straight forward stuff. I don't think you should used up all your time becoming a physics expert. Do you have every ASTB practice book you can get your hands on? There's about 3 of them. Take the practice tests over and over. Master your strengths and bring up your weaknesses. For example, you shouldn't miss a single question on the spatial apperception section. Buy a speed math book for shortcuts etc. Did you see any calculus on the test? I didn't. But then again I never took calculus and physics in college either. I literally had to sit down, humble myself, and study math starting with the basics like fractions and decimals. I got a 5/6/5, 51 on my first test. The computer would freeze for 3 seconds after each question that I submitted. I was furious!!! I took it again and scored a 6/7/6 53. Not stellar but was apparently good enough. That was long winded. Good luck!