Personally I do not lend to the NTCH akways theory! Each of us are anatomically different in stature and also in the way we hold, control and present the weapon. Bottom line with all the training hype, it is whatever works for you. And with the use of optics, scopes and other devices that changes this issue also. Bottom line, it is whatever fits the shooter best and accomplishes the optimum accuracy of the shots, stability and control of the weapon!
I learned a long time ago as an instructor that it is whatever is best for that particular person or in my case the LE or Govt. personnel!
So it is down to personal choice and what works best for you!