Feel is subjective but RTZ has a confirmed hardness of 180 HV (Vickers Hardness) while RTX6, which was made from 8620, has a ...
Cleveland RTZ wedges
Cleveland developed a new material called Z-Alloy specifically for use in wedges to enhance feel and prolong groove sharpness.
Night - Cloudy with a 40% chance of precipitation. Winds WNW at 17 mph (27.4 kph). The overnight low will be 27 °F (-2.8 °C). Cloudy with a high of 27 °F (-2.8 °C) and a 47% chance of ...