Building consistancy?

[greyguy]

As a relative newbee to hitting, I started out with a bang, but now I find myself stuck. My golf today was indicitive of what has been happening.
My drives right now are far superior to my fairway shots. It feels like I am hitting only about 30% of my fairway irons with a good flying wedge intact. I will hit an iron perfectly flush and straight with a bend right wrist and then tell myself that I can do that on the next shot. But it rarely happens two shots in a row. Very frustrating. However the successes that I have had are so rewarding that I can't wait to hit the ball the same way again.
I have the video "Preshot routine for hitters" but need to know the best way to learn to be more consistant at impact position (bent rightwrist) through the ball. I am not sure if I am running out of right arm or experiencing clubhead throwaway. Are there drills somewhere on this site that can help build consistancy?
I read on this site about basic motion and aquired motion. Is there a definition on those terms here?