I actually wouldn't be too surprised. Did a lot of pack carrying for other recruits who were falling out on the humps in basic. The people I got along best with in basic were the team oriented guys who wanted to work together and have everyone help each other out (which, sadly, is pretty rare across the Corps).The runner/endurance mindset of just grinding through annoying/tough stuff definitely gets you a long ways in boot and the fleet. Basic is just mind over matter. The real BS call is on the guy who said there's a 80% washout rate. 20/30% at most. Also, definitely lost aerobic fitness in basic. Was in mid 16 shape when I shipped, ran 8:15 for 1.5 miles on the second or third day after I shipped, and then ran 18:06 for the 3 mile 80 some odd days later at the end of basic for the final PFT. I was 4th in the company, I think the fastest kid ran 17:30-ish. We had a couple of senior DI's go out and duke it out on the final PFT and they were about 17 flat, which is pretty smoking fast for most any Marine. In 4 years the fastest PFT I saw was 14:50, and that was a SSgt who ran for the all-Marine team. There was 1 other kid in m company who could break 17, it was always fun racing against him. After that, there was usually a 45-60 second gap back to third, which is a fairly typical spread in most units. I had a friend who went to MARSOC A&S, he said the top kid from his platoon did a 16:30 3-mile (mostly on sand though, from what I hear), but even then there weren't too many guys going under 18 (although the spread wasn't as bad). The really impressive thing was the 12-mile pack run (45 lb pack?), in boots and utes, over rolling terrain, in 1:47 and change. Whoever did that set the A&S record, I believe. Also, I read an interview with Kenny Cormier (spelling?) about a year after I hit the fleet. He ended up getting attached to 2/3 or 3/3 out in Hawaii and qualified for scout sniper, said in the interview that although he didn't run much anymore he "appreciated having that background when he was sprinting uphill under fire", or something like that.