We had a guy, came in 300 and left 198 in 14 weeks. He could have been Platoon Guide but he couldn’t climb a rope or do more than a chin-up or two. I admired his grit but didn’t envy all the lettuce&roughage and cottage cheese he had to eat while we slopped on the regular grub... and PT was a b*tch. This was the early 70s.