Now I'm not talking "rare" in the valuable sense, but in the sense it just seems to be different from most other specimens. Pretty much all of these types of similar models have a decocking feature, so you have safety on, safety off and decock. My dads has no decocking option. Meaning, if you want to carry it DA/SA you have to manually lower the hammer. However you could also opt to carry SA cocked and locked. Anyone else have any experience with this type of model?