An other thing to think about too is that with his 6'10" wing span, he could have an other growth spurt of an inch. I know my kid gets a bit chubby right before a spurt. You add that with adding extra calories because you're trying to get to NBA weight, he's going to add a few pounds in the areas that are hard to lose them. He's got more of a PP build than a Jordan build. Jordan grew a couple inches at his age, same with PG13. I wouldn't be worried for a couple more years, and if it effected his game.