What matters is balance and gun fit not the length of barrels. For perfectionists there are custom made bespoke guns, so called. With one of those you will shoot better because the gun was fit to you that is exactly the same as wearing tailored suit from Milano or shoe made to your foot or foot mold in London. It is very obvious that custom suit and shoes will make one look & feel better than something off rack at Brooks Bros. or Jonston & Murphy outlet.