All things being equal, wouldn’t it make him faster? That is assuming that other training aspects aren’t neglected, exess bodyweight isn’t gained, etc…
I mean 2x bodyweight is pretty strong, especially for anyone still in high school but I still think he could benefit from further strength gains as long as they didn’t compromise his speed training. I know throughout high school career, as my relative strength in the squat went up, my times dropped. And I was pretty strong since 10th grade.
10th grade-365 for 2-3 reps above parallel…and I ran 15.56 110 hurdles
11th grade-not sure of parallel cuz i squatted ATG 355 for 5x5…and I ran 15.00
12th grade-430 for 3 sets of 6 at parallel, 405x9 below parallel which would give a projected max of 521…and I ran 14.5
I weighed 175-180 sophomore year, 185 junior year, and 195 senior year.