DC300 Like I say, I ain't no fan of the adjustable drivers, but the loft adjustment doesn't come simply from "opening" or "closing" the face angle by rotating the clubface, as one might do when hitting an open face or hooded shot with an iron. Instead, the loft adjustment comes as a result of the shaft entering the head at a different angle as the adapter position is rotated. So, for example, if you want to increase loft, you put the adapter in a position that results in the shaft leaning forward slightly when the clubhead is flat on the ground. Then, when the golfer takes hold of the club and moves the shaft into the address position, the clubhead tilts backward slightly, increasing the loft angle.
HOWEVER, the problem is that this adjustment does not affect the loft only. Because of the shape of the head and the fact that the shaft enters the club at the heal, as the player moves the shaft more vertical, the loft may increase, but the head naturally rotates to a closed position. Most golfers don't understand this change and don't realize that in adjusting their loft, they have adjusted an arguably more important specification: face angle.
This leads me to my position on this subject: For people who understand this relationship and who have the game to take advantage of it, this adjustability can be a benefit. However, for the vast majority of users who do not understand this relationship, this tinkering can lead to unexpected and potentially really bad results. They end up adjusting and adjusting and it's like throwing darts in the dark hoping that you'll hit something. As I have said before, not only does this innovation not help most golfers, the club manufacturers have given the average user just enough rope to hang themselves.