(My take):
(It will not really help an 18-handicapper at all......tour clubs DO feel heavier, sometimes feel better upon Impact (more solid), have custom face angles, are made from better quality materials....most importantly though....TOUR clubs are built for TOUR players!......
This means: higher centre of gravity...which means- LOWER SPIN for players with HIGH swing speeds....(to stop balooning).
This is absolutely great for someone who can take advantage of it.....but....
Not good AT ALL for someone who does not generate high swing speeds...
Unless they just want to look cool...
)