For the golfer who has difficulty delivering the club onto the ground and ball in a similar position - this mistake of changing your low point of the clubs delivery has a lot to do with the way the right arm works in the swing. Find your check points to better in this video
This video is a follow up the a previous swing path and clubface orientation discussion. Now I explain how the drills in my instruction helps take care of these two elements.
Forearm strength and wrist strength not only allows the club to be released fast and late it also helps you have a better path on the downswing - It's drill one logic and where things should start for all golfers who want a better impact.
How the right arm works coming into the 430 path can play a huge role in how the right arm reacts in the hitting zone- It's a simple idea based on pitch or punch elbow position.
Learning to release the club from the 430 entry path opens up a host more backswing options to assist you to hit the ball correctly. There is only a perfect backswing for YOU- not a perfect backswing for ALL..... 
Cupped wrist or Bowed wrist? As a carryover from a previous post relating to Jack Nicklaus and his thoughts- here's the video to help distinguish the difference and what is easier to perform for a better game