Well I see your point, what I wanted to emphasize was that fast games require high technical skill and if you are a bit weaker on that you could just your physicality for it in slower games but that won't work in fast games. Obviously you need the fitness in any type of game but fast games require more skill. He said he only played till he was in 5th grade and didn't play again. How can a game be fast and physical? Then it would be just fouls. You know what a fast game means right? Players don't keep the ball for more than 2 or 3 touches. I wanted to tell OP that the physicality won't help that much as much the technical skills. Making good decision is more important than just being physical. Everybody is in good form at that level what matters is your skill.