Well , the biggest consideration is that since you live in FL , I think corrosion would be a problem . So , that said , the 66 (stainless) would be the logical choice . I have had both , still have the 19 . My sister now has the 66 . But , we lived in Az so rust was not a problem . As far as performance shooting , both equal , both have round butt , basically same weight and size . Hope this helps , Regards, Paul