There have been PLENTY of deep routes called throughout Alex Smith's career where he decided not to pull the trigger.
I think the Moss deep ball is a perfect example of why we see so few of them from Smith.
Moss ran deep, ran past the safety, ran ten yards past the safety, THEN Alex threw the football to him. Moss had to establish that he was way past the safety, before it was "safe" enough to throw the football down field.
Waiting so long to throw the deep ball requires a LOT more time in the pocket, which obviously cuts down on opportunities.
The only deep ball I have seen Smith throw with good anticipation, is the wheel route to Vernon Davis. He let's go of that one nice and early. Everything else requires epic amounts of time in the pocket.
[ Edited by BrianGO on Oct 16, 2012 at 1:24 AM ]