Originally Posted by IDEXAN
There's the initial burst at the los when the ball is snapped which is an indication of exlosiveness, then there's the long-sprint down the field by receivers on deep routes where a 200 time is perhaps even more indicative of top-end speed needed to seperate from the DB coverage.
Routes longer than 40 yards are pretty rare. I think 40 yards is just fine for testing someone's deep speed. If you need those 40 yards to get passed someone, you wont be a good receiver in the NFL.
The initial burst and "wiggle" are far more important.