The ET2 was introduced by Carter Penley and has been considered a considerable upgrade of the original ETA. The ET2 was manufactured with feel, control, and distance in mind.
And by all indications, it’s been a success. The original ETA design was carried one step farther to include a range of players who play a better than average game of golf and specifically and want to target distance and control. The ET2 was designed by Carter Penley, concentrating on player inconsistencies that generally affect control and distance (refer to article “Locating Spine” by Carter Penley). Check out the new Penley ET2 to improve your distance and control.