Ya know... this is really sort of a misleading thread. Most of us probably COULD hit a PW 150 if we tried, but why would you want to? I am just as likely to hit a knockdown 3/4 8I for a 120 yard shot as I am my PW. For me, that's a more controlled shot, keeps the wind from having much effect on the ball, and is easier on my back than a nuked PW. It's a shot that I've had in the bag for almost 20 years, and it's one of my favorites. It goes right along with my 150 yard knockdown 25° hybrid shot, played for the same reason, to keep the ball out of the wind.
I would far rather have an arsenal of shots that I can apply to different clubs than a bag full of clubs with which I can only play one shot.
