I have a hard time believing this. A true parallel 515 squat us NOT one that most teams have in their roster.It's not dime a dozen but each team would have a hand full of kids that can do that. It's pretty good but not amazing.
Fast 40 times and huge squat numbers get thrown around a lot...most are not legit imo.
Get a stickler to judge the squat and time the 40 and all of sudden 400 pounds and 4.70 becomes pretty damn rare.