Reminds me of a conversation I heard about 10 years ago at a pistol range. A kid was shooting one of the bigger 9mm Ruger, I think an 89, could have been an 85, he was doing okay. A kid (anybody under 30 is a kid) sat up next to him with an uberpistola, dont remember, Sig, HK or Glock. Ubergun watches the kid shoot the Ruger and says thats a great beginners gun. I ask, whats a beginners gun? A gun you learn to shoot on until you can afford to buy a pro's gun. Okay, un huh, so whats the definition of a pro's gun? Gun's that are in use by police swat teams. Okay, so what makes a pro's gun a pro's gun as compared to his Ruger? They both go bang when you pull the trigger, yours doesnt appear any more accurate than his, so what makes the difference? There was a general stumbling around the issue. I told him I was really just wondering because I knew of no swat teams carrying S&W 27 revolvers but that they would hardly be considered a beginners gun.
My own experince in shooting has been service grade pistols are just that service grade. My Ruger 95 wasnt any different than my Glock 17. My Glock 34 was a step above either and my current range gun Hi Power is a step above the 34. I've got an old bottom of the line Kimber classic that shoots rings around any I have ever owned, but it's had a very good trigger job. My guess is the tolerances just stacked on the good side.