Never said he went to the combine for electronic timing head to head with Bo Jackson. Said he was timed at A L A B A M A foottball camp by a fat 6 fingered line coach with a mouth full of red man. The best part is that the same fat guy timed everyone else slower!
I get your point and I'm not disputing that Justin is fast. But I'd bet he will run in the 4.4 range if/when he goes to the NFL combine. I highly doubt he breaks into the 4.3 range electronically timed. Those guys are super rare. And, as pointed out above...NO ONE gets into the 4.2's. There have only been a few of those guys in history.