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So I was talking to a guy who used to be on the track team for my school. According to him, and all these numbers seemed legit, he was 6ft flat and about 200lbs. His max squat was 365lbs and he was deadlifting about 400 when he was on the team. So pretty solid numbers. Now watching him do some vert measuring I was extremely surprised to see how low his vert was. From a standstill, he was probably about 4 inches short of the rim. Now I'm guessing like a 7'7" or 7'8" reach, not sure on that. He definitely didn't have ridiculously short arms though. Running, he hit 1-2" over the rim.
I was so surprised because I thought first of all that his standing vert would be much higher, and second that the difference between his standing and running (double-legged) wouldn't be as high as it was because he was strength jumper.
So what I'm wondering is, how is it that someone can squat 365 and be so far from touching the rim from a stand still? How can you explain the difference between standing and running vert?
He said that he never did his lifts explosively and that he put on slow-twitch muscles, hence the lack of pop in his jumps. But wouldn't the strength from his high lifts compensate for that?

Overall just confused by his stats and seeing as I'm starting up with similar lifts, I don't want to end up with no explosiveness like him!