A lot of times the chance the catcher has to gun down the runner has to do with the pitcher. If the pitcher doesnt throw out of the stretch, or if he just has a huge windup and the baserunner gets a good jump then well...good luck to the catcher. Think BK Kim...and I've heard Dan Haren has problems with this too.
"I feel like I am pregnant with all these ideas. I am just trying to give birth to them."
-Miguel Batista describing his writing career