How will Rory's shaft change impact his chances of winning The Memorial and The US Open?

He will lose speed and distance with a heavier shaft...

He hits it so far already he can afford to give up some yards for more accuracy

I think if he is able to cruise at 180-182 mph ball speed, the heavier shaft should work wonders for him

Not confident for him. Reminds me of when he tried to copy Bryson and when he switched irons at the start of the year

If it works for accuracy then I think it’s a good thing. Hitting fairways will be key at Shinnecock