Well, Im not saying it couldnt happen, it very well can and Im sure it does and have seen a few occasions where a large amount is acheived at that early of an age. But cming from someone who lifts (and Im no strong man beleieve me) being around others who lift much more than I as well, it would take extreme dedication to reach 400+ lbs. I do not care how big a young'n some are, unless you have layed under that much weight, its hard to imagine honestly. The fella may be able to do it and if he does I would be the, THE first to say mad resepect, its just Id have to see it, ya know. I have "heard" about a lot of people doin a lot of weight ya know.