The K frame Smiths, are Very fine, and I own several, The L frame can be just as slick, but the difference is the diameter of the cylinder assembly, the closer the cartridges are together, the less the centrifugal force is created, and less felt friction as well. You don't feel the weight of the cartridges slamming home as much, as you would with an L or N frame.
Great Story too, Thank you so much.
I would like to have met your dad, and certainly like to meet you.