Has not been a problem with my GP's, but I never checked as mine are accurate, and they don't lead up the barrels. You will not get that with the new Smiths, as they are no longer a crush fit. I believe that S&W is now using a sleeve barrel similar to DW. If you are concerned with a choked barrel go with the Smith.
BTW both my N Frame Smiths have the Hillary Hole. I do not use the internal safety, but it has not affected my guns function at all. They are both smooth as silk, though I have never checked the trigger pull weight. I am not a TPW queen, if the gun goes boom when I pull the trigger it is good to go.
Most people talk of the old Smiths wonderful triggers(they were very smooth) compared to today. But the actual pull weight of older Smiths was 12 to 15 pounds. If a person wanted out of the box 8 pound they went with a Python. My Colt Police Positive has a extremely smooth 17 pound trigger, and it is a joy to shoot. Older guns, especially Colts were not designed for slow pulls, they were designed for quick deliberate pulls that a police officer would use in combat.