I posted eariler and my thoughts haven't changed much. I bought the K22 because I bought a K38 first and both are 5 screw and they weigh and balance exactly the same. To me the K22 or Model 17 6 inch maybe the perfect range revolver because at my age I need all the sight radius I can get. That said for packing in a holster on a field trip the Model 18 wins everytime.

K22

Model 17-4

Model 18-3