I do know this. I had a roommate that walked on and stayed with the team for about a year; this was pre-Croom. He said that they ran 40s that were timed electronically, but that no one could break 4.66 or 4.63. I don't remember the exact number, but it was mid 4.6s. So they cut .3 off of everyone's time. All that to say, I don't know what the guy runs but I would suspect we've altered times since and will do it again. I also suspect we aren't the only ones that do it.