Started playing the HX Red to offset the cost of the Nike Black's. I have to say now, that I may very well not return to the Blacks. The HX Red is so responsive off the tee, with a great deal of reaction around the green, a type of reaction I never saw or perhaps felt with the Black. Maybe my swingspeed with my wedges was not high enough for the Blacks. I can have the reds stop on a dime, or come back 5ft if need be. Great confidence booster.