One of the most over looked aspects of your clubs that are over looked is your lie angles.
If the lie angle is too upright, the heel of the club will tend to hit the ground first.
If it is too flat, then the toe will make contact first and tend to dig.
Either way, your ball contact will be off center and less than solid causing loss of distance.
Every one degree off can cause your ball to fly up to 4 yards off line.
Every manufacturer has different standards, so be sure you have the correct lie angles for your swing.
If you are purchasing new clubs, make sure they are checked and bent before you leave with them, and have them checked at least once a season.