As a golf professional and club fitter the Ping Eye 2 is a good set of clubs. While reshafting the clubs will help, I believe from reading all the post that you didn't address getting the lie of the club altered, from black to green. This adjustment is as important or more important than the shaft. The color code refers to the lie angle of the iron. The lie angle will effect the direction you hit the club. Finding the proper lie angle will enable the bottom of the club to contact the ground correctly which will assist in hitting the ball straighter. I would suggest you get this addressed and done by PING. They will adjust the irons for $3/club which I believe is well worth the investment.