For what little I know....and most of that is sh1te anyways......the truth is that it is what works best for the individual. I bought into the idea of what John Jeffries was selling. I read the magazines like most of us and thought that sounded like a good idea. New or old doesn't matter.....after all.....fashion goes round in circles right!
After meeting J.J. for the first time, I realised he is a really genuine bloke not out to sell me a latest fashion Browning or Beretta that falls to bits. He believes in his concept (new or old). I tried a gun.....liked it. I've had a perazzi before and loved the feel of it......couldn't hit a barn door with it.
J.J. sorted me out, I bought it, fitted like a glove and my scores improved. So then....does it work? It does for me, and I would suggest that a good gun fit is of paramount importance as your eye is the 'Rear sight'. Is it for everyone? I doubt it as one mans meat is another mans poison. Good shots can adapt to a gun (they are usually sponsored to shoot a makers gun).....but for us mere mortals a good gun with an adjustable comb thats at least a start. I was in a position to buy a custom fit gun, and I can say that J.J. is a genuine bloke and spends the time to make sure his solution works for you.
It does for me!