About the Marine physical fitness question. We have to do a regular Marine PFT before API for MATSG. Then you have to do the Navy PRT thing during API, if you pass the PFT do not stress the PRT. It was by far the easiest thing we did in API. As for the studying, I had basically no collegiate level science/math background and I studied a fair amount during API but none ahead of time and did fine. Admittedly if I had been a Navy SNA, I would have been on the fence but I think they had to have something like a 96 average when I went through. I think it's a little ridiculous to have a minimum standard if you have to achieve far above it to make a cut.