Speed is not something you debate when you have the numbers. The numbers don't lie. Also had terrible burst (vertical jump + broad jump) score that was 5th percentile for his position.
He did not have an impressive combine at all, and most guys with those scores would never make the scout team. Testament to his grit and to Andy Reid's favoritism toward BYU players (I say that happily).
Sorensen did, however, have an awesome AGILITY score in the 100th percentile for his position (Agility Score is simply the sum of a player’s 20-Yard Short Shuttle time and 3-Cone Drill times. This number measures a player’s short area quickness and balance and correlates with an ability to avoid tackles and compile yards before contact).