Trinnaman has truly elite speed. If Tanner really runs a 4.38, so does he. People forget about Jake Arslanian, but, kid runs a 10.67 100 meter. Then there's Micah Simon, Mitchell Jeurgens and Nick Kurtz who all apparently run legit 4.5 40's.
This may be the fastest WR corps in BYU history.
Edit: While I'm certain Tanner is fast (he runs away from everybody in his highlights), I can't help but think his video is sped up a touch. Everybody in it (including the refs sprinting down the sidelines) looks quick. It reminds me a lot of Ryan Kessman's highlights that were sped up.
FWIW