The CBX and RTX-6 Cleveland Wedges are both very similar in design with the CBX being slightly more forgiving and aimed at mid to high handicap index players.
This Cleveland CBX Zipcore wedge with a True Temper Dynamic Gold Spinner Wedge Shaft 115 is a "Tour Issue" shaft. Implying a stiffer flex for the swings of professional golfers.
However with a 5% weight reduction and a longer, more active tip section this combination results in a more lightweight and flexible shaft suitable for average swing speeds.