I think that it might be helpful for you to understand that Bertholy training is incredibly effective for those who are less blessed with physical ability. It can be very useful for someone who cannot naturally do anything very well, the sort of person who has two left feet and bonks themselves in the head while trying to change a light bulb. This sort of person who really could not break 130 without cheating has been able to shoot par after some time often years of Bertholy training. These cases are pretty well documented and render any argument against Bertholy training for the golf swing moot.
Now whether or not Bertholy training could take you from being a hotshot nothing golfer to pro tour level is another question. Maybe you should give it a shot? There is a lot of money out there in spite of the deepening depression!
