After failing my first attempt back in February, I just got my results yesterday and I passed! Honestly still a little shocked. I wanted to write this up while it's fresh because I spent weeks searching for advice and couldn't find much specific to the SAC.
The biggest game-changer was switching from just reading the manual to actually drilling with a SAC practice test. I found a few timed sets online and doing those under real conditions — no phone, timer running — exposed gaps I didn't even know I had. Situational judgment questions especially. I thought I understood the scenarios until I started getting them wrong consistently.
My study guide approach was pretty simple: I spent about 3 weeks, roughly 45 minutes a day. First week was content review, second week was practice questions, third week I focused only on my weak areas. Scored a 74 on my first attempt, needed a 70 to pass, so I was close but not confident. Second time I got an 81. Total study time was probably 25-30 hours across both attempts. Happy to answer questions if anyone's prepping right now.