I was an admirer of this kid. But I was suspicious. I raised kids around the Houston prep sports scene and was surprised at the 'by whatever means it takes' ethos I saw.
So this kids goes from HS running a 10.11, 20.31 and a 46.15 while long jumping 26 and 3.5 inch
to now being 2 years removed and having better training, being stronger and bigger and his max 200 is 20.66 and long jump is 24 7.5 inch
I see alot of HS athletes drop off in the NCAAs because they weren't natural athletes in HS where there is no drug testing and they lack the sophistication (except for alan webb whose dad was an anesthesiologist) to enhance w/o being caught in college and risk losing their scholarships.
There is no reason a 20 year old athlete should not be better than what they were at 18 if they are still competing and training at a high level.