K15 irons VS G20 irons, you prefer older or newer ?

Ping K15 irons are extremely good clubs, they have recieved many customers' good reviews,golf clubs for sale G20 irons are the newesr club from Ping, Ping said the G20 is their best G series, and the new irons own the new design and technology. If we compare the old K15 irons with the new G20 irons, which can be better ? Do you want to know the results, then let's look at the comparasion.

The Ping K15 are multimetal irons design combines a large, lightweight titanium face with a 17–4 stainless-steel body to increase forgiveness and improve launch conditions. Weight saved from the titanium face is allocated to the sole and perimeter to achieve more accuracy and higher ball flights. The K15 hybrids are available in 3H, 4H, 5H and 6H. They rely on an extremely high moment of inertia and a patent-pending feature that creates lower-spinning, higher-launching shots that fly longer and straighter.By utilizing a lightweight titanium face,TaylorMade Tour Preferred CB Irons PING engineers made the iron club face larger and added 27 grams to the perimeter for a higher MOI. The extra-wide sole of the new Ping K15 Irons 3-9WS features a low and deep center of gravity to promote high trajectories and low spin. High launch angles allowed iron lofts to be strengthened without compromising control. A large internal weight pad in the hybrids produces a high MOI for added forgiveness. The iron’s offset hosel and face relationship increases launch and lowers spin.

The G20 Irons are designed to deliver superior distance, control, accuracy, and performance.
PING G20 Driver Forgiveness and accuracy are achieved through extreme perimeter weighting in the 17-4 stainless steel head. A multi-material cavity badge made of soft elastomer improves feel and sound while enhancing distance control, allowing you to play your best golf.The multi-material cavity badge of G20 irons is made from aluminium with soft elastomer heel and toe sections designed to improve feel. The structure behind the thin face helps provide consistent distance control throughout the set. The thin face also allows weight to be redistributed to the perimeter and the back of the head, Callaway RAZR Hawk Draw Driver this is designed to aid forgiveness as well as producing a high launch. The hosel-to-head transition throughout the Ping G20 irons set should inspire confidence at address and give the impression that the ball will launch from any lie.